Just For Laughs Grabs

Its funny how people here use such animative words.

I still remember the first time I heard the word "grab" in this context: One of my classmates said: "Hey, just gimme a minute. I'll grab a sandwich and be right back!"

What I expected the next scene to be: "Whoooosh!" He vanishes.. leaving a trail of those lines behind him (like the ones Tom does, Jerry does, Calvin does...), the guy at the cafeteria counter is holding out his sandwich for him, my pal pulls it out of his hand ("grabs") and runs, leaving him looking bewildered..

The real scene:
Scene 1: There's a line (queue ;-)) of 3-4 people at the cafeteria counter, and when his turn comes, he decently makes the payment, waits for the guy to hand over the sandwich to him and gets back.

Exit my friend, the cafe guy, etc.

Scene 2: Meeting with my prof.

I enter prof's room. Prof sitting at his table. Prof says "Hi P! I'll just join you in a minute. Please grab a chair."

(The scene that plays in my mind: I snatch the chair and run for my life).

Exit me, prof.

Scene 3: At office. Boss' room. Me, boss.

Boss says: Wanna go out and grab some Lunch, P?

Me: Sure :)

Boss' phone rings.

Boss: P, would you just wait at your office? I'll come by and grab you in a minute.

Me: (Oh noooo please, don't!! :-O)