Please, keep your long songs to yourself, unless there's a groundswell of requests. Once at a song swap, this guy sang A La Clair Fontaine, en francais, all 487 verses (I exaggerate, but not by much) and I just wanted to strangle the sumbitch. It takes a massive sense of entitlement to hog that much time from everyone else. I've seen open mic nights where the limit was two pieces per performer and some douchebag does a 20-minute song and then complains when the MC won't let him do a second one.