Not sure where you're writing from geographically, professionally or culturally but I can't imagine doing this to anyone.

In a professional environment, grabbing someone's arm and leading them around by it seems like an incredibly inappropriate breach of that person's personal space.

Yeah you'd have to be real fucking important for me to not simply pull back and walk away without a word.

But, I'm really interested in which situations you've actually done this, what reaction you wanted, and what actually happened ?

Same, you'd need to be Don Corleone himself or I'm off.

And if you’re Don Corleone himself, you don’t need to grab someone’s arm to have their undivided attention.

I figured OP was being sarcastic and got a chuckle out of it. Seems like it didn't land that way in general though, looking at all these replies!

I got a real chuckle out of it. But I am feeling a bit remorseful. Will add /s next time.

"Yeah, that's interesting, but could you fuck off off of my arm?"

That's what's called a power play, and it'll get you into a lot of trouble once you encounter someone who will stand up for themselves.

I was once meeting some potential partners. The big tall guy did some kind of power handshake on me using both hands and exerting an uncomfortable amount of pressure.

I just thought he was a total dick head. We did not partner with them.

Seems like a good way to end up on #metoo

Grab my arm without asking and the next person you'll be talking to is your dentist.

Come on you guys. This was probably a joke. I mean look at that gif.

Touch me like that and conversation is over.

plus if you do this often enough, people with guns will take to a room with free food and board!

Total attention? You would sound like the teacher in Peanuts in the other person's mind while they're thinking about what the hell you just did.

Surely You're Joking, Mr. Mr Sgt.

I can't imagine anyone doing that to me. Seriously, WTF.

LOL. Literally. Do people do this? I gotta try this with my wife - on the one hand she's going to smack me but on the other hand I'll get a serious laugh out of the experience.

Yeah. If you do this, I despise you.

My uncle does this. It’s fucking unbearable.