Whoever bought that shirt could probably use some social skills coaching. It's not a good idea to wear a shirt that indiscriminately broadcasts contempt in all directions. I get the purchasers probably confused it for humor, but there's an important difference between humor that works on a viewer TV show and and humor embedded in the interaction of you with another real person.
I had this though recently at Walmart, after seeing the third such shirt (a visual pun meaning "fuck you"). Geeks often have the same attitude problems.
Ideally, but that still doesn't really solve the problem. It's not really practical to counter an indiscriminate broadcast of contempt with point to point interactions. People who don't know you or don't know you well will always see your shirt, if you wear it out.
You want to do the opposite: indiscriminately broadcast a kind personality, then deploy the sarcasm in point to point contexts "that never [leave] any doubt that it is a joke".
This made me realize just now the functional* couples I know would never wear somethings so blunt.
This is all purely anecdotal but just sharing my personal observations :)
*I need a better word that just describes the objective truth with no baggage please help lol
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