Bloke I know is a funny lad - the sort of guy who is just naturally laugh-a-minute. Has the gift of the gab; can tell a great story; and could make reading the phone book sound hilarious.
A good while back, we went on a Christmas night out to a comedy club in Reading, and between acts, our colleague just came back from the bog, saw the empty stage, and went up for a laugh. Turns out the mic was live.
He stood there for a good few minutes, freestyling a "set", and the audience warmed to him. It was only when the next act was scheduled to come on that the staff clocked that he was just a randomer, that he got shuffled off and sent back to our table.
The balls on the guy. Legend.