When driving a cab in the Marvel Universe, never attempt to shake down the Hulk for a tip.
Especially when the Hulk is in his Joe Fixit persona.
Okay, you can probably get away with doing that. But, really: don't do this.
So, to sum up: don't be a dumbass in the Marvel Universe.
Panels from (of all places!) Wolverine v.1 #7 (May 1989), script by Chris Claremont, pencils and inks by John Buscema, colors by Mike Rockwitz, letters by Ken Bruzenak