say -v cellos dum dum dum dum dum dum dum he he he ho ho ho fa lah lah lah lah lah lah fa lah full hoo hoo hoo

There is also 'Pomp and Circumstance':

    say -v Good dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum

    say -v Bad dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum dum

   say --voice='?' | perl -lane 'my $v = $F[0]; system("say -v $v \"Hi $ENV{'USER'}\"")'

   for voice in `say --voice="?" | awk '{print $1}'`; do say -v $voice "Hello $USER, I'm $voice"; done

That is, typing

    say -v Milena "Здравствуйте, меня зовут Milena.

    say -v Bruce "Здравствуйте, меня зовут Milena.

I don't think that Apple has created the World's Best Accent Impersonator here, but it's good for a few laughs.

1, the pedantic: technically none of them know how to speak English, or any other language - there's just a rule set for making phonemes based on characters out of waveforms.

2. Ignoring the pedantic response, I still don't think that's true - if that were the case, then Milena wouldn't be able to speak an English sentence!

    say -v Milena "Hello, I am Milena"

   say -v Anna 'über allen Wipfeln ist Ruh'
   say -v Anna '[[lang fr_FR]] que restet-il de nos amours'
   say -v Anna '[[lang it_IT]] chi nasce asino non muore cavallo'
   say -v Anna '[[lang es_SP]] nosotros tenemos mas influencia  con sus hijos que su tiene'
   say -v Anna '[[lang en_UK]] are we having fun yet?'

I like a good prank. Leave your screen unlocked? You deserve the abuse you get. :) But accessing my laptop in this way is just creepy.

Disclaimer: I have managed tech teams before. It is better to forgive then have knee jerk managerial reactions.

Sorry, I get office pranks but there's no reason to be doing anything on an end-user's workstation without their permission or consent that isn't maintenance or security related. I guess I lack a sense of humor, but I've also seen too many instances where a prank on someone's machine resulted in severely unintended consequences and breaches of trust that rippled through the team.

Just not worth it, IMO.

That said, I don't really find the whole "recursihoffing unlocked laptops" thing all that funny either, but it doesn't bother me as much.

Honest question, why the need to apologize for being a former Windows admin?

Please don't do this here. This comment would be fine with just the first sentence.

It's a British expression made popular by a movie. He is not calling out the guy by his first name.

People do this kind of thing in online comments all the time, to make the other person look bad and rub in a little extra insult. Any one comment isn't much, of course, but they compound into a degraded discourse, and all of it goes against the civility we try to practice here.

If it were open source you could probably get better results by hacking it up to parse in the "right" language and then only realizing the phonology in the "wrong" language, instead of both parsing and speaking in the "wrong" language.

  say -vjun "[[inpt TUNE]] h {D 100; P 233.08:0 233.08:100} OW {D 200; P 233.08:0 233.08:100} l {D 100; P 220:0 220:100} IY {D 200; P 220:0 220:100} f {D 100; P 233.08:0 233.08:100} AA {D 500; P 233.08:0 233.08:100} k {D 100; P 174.61:0 174.61:100} IY {D 500; P 174.61:0 174.61:100} n {D 50; P 174.61:0 174.61:100} g {D 50; P 174.61:0 174.61:100} S {D 100; P 155.56:0 155.56:100} IH {D 400; P 155.56:0 155.56:100} t {D 100; P 155.56:0 155.56:100} IH {D 200; P 233.08:0 233.08:100} t {D 100; P 233.08:0 233.08:100} s {D 100; P 233.08:0 233.08:100} AA {D 200; P 220:0 220:100} d {D 100; P 233.08:0 233.08:100} AY {D 500; P 233.08:0 233.08:100} n {D 100; P 174.61:0 174.61:100} OW {D 400; P 174.61:0 174.61:100} s {D 200; P 155.56:0 155.56:100} OW {D 500; P 155.56:0 155.56:100} r {D 200; P 155.56:0 155.56:100}"

Which is rather lovely, because someone in Apple HQ has decided that the (London) band Saint Etienne must be French, and so Thomas faithfully reports that the current track is "Leek a Motorweh".

   say -v Xander "Ik houdt van appeltaart met slagroom in Scheveningen op zondag."

http://greggman.github.io/text2speech/

There's also some singing like voices.