"Floor singers who, knowing that time is short, sing an interminable song, well beyond the allotted time."

Mmmmm! My band had a 'real' paid gig some time ago at a club (which shall remain nameless) and, after the interval a few locals were offered a song each before we came on for our second 45-min spot. One of the locals, a well-experienced, seasoned performer who should know better, demanded two songs, and was told by the organiser he could only have one because time was short, and the room had to be vacated promptly at 11pm.

He proceeded to sing 'Tam Lin' in its entirety - at least ten, probably more like fifteen minutes. Which meant of course that, by exacting his revenge, he shortened the paid (quite handsomely!) artists' set by between five and ten minutes.

Very selfish, and very rude, not only to the paid artists but, more importantly, to the rest of the audience who had paid good money to see them, IMHO.