Because he drank his coffee before it was cool.
Steven Hawking
A tongue.
The guy who can carry a cup of coffee in each hand and a dozen donuts.
Cause it doesn't want to be latte. Sorry. I just came up with this lame joke. Downvotes ahoy!
He touched the beaker before it was cool.
About a wick!
A Mars Bar
The bartender replies, "For you No charge."