Chocolate ice cream

A man approaches an ice cream van and asks, "I'd like two scoops of chocolate ice cream, please."
The guy behind the counter replied, "I'm very sorry, sir, but our delivery didn't come this morning. We're out of chocolate."
"In that case," the man continued, "I'll have two scoops of chocolate ice cream."
"You don't understand, sir," the guy says. "We have no chocolate."
"Then just give me some chocolate," he insists.
Getting angrier by the second, the guy asked, "Sir, will you spell 'van,' as in 'vanilla?'"
The man spells, "V A N."
"Now spell 'straw,' as in 'strawberry.'"
"OK. S-T-R-A-W."
"Now," the guy asked, "spell 'stink,' as in chocolate."
The man hesitates, then confused, replied, "There is no stink in chocolate."
"That's what I've been trying to tell you!" he screams.

via