It's not about being the best dancers, or putting on the best show. For that, go watch "Dancing With the Stars" or better yet a performance by your local ballet troupe It's about a community getting together to enjoy each others company. Dancing happens along the way. Tolerance should happen, too. - So being a "poor" dancer (whatever the cause) is never a reason to ask someone to leave -- although it may prompt some very careful, very friendly advice, to try to help the person improve. - Being a "dangerous" dancer should trigger a stronger response. Make the person aware that certain activities are unacceptable (for example at our dances lifting a partner off the ground is forbidden) and other activities frowned upon (for example forcing a partner to go beyond their abilities or desires.) Even then the response should not be to ban the offender. Just to educate them firmly and stop the problem behavior. Of course if the problem doesn't stop further action may be necessary, but still it is unlikely to require a ban. - Having unfortunate personal habits (two much perfume, too little bathing, or showing up chemically impaired) should also trigger a firm, but kindly-intended response. The most serious case is a "predatory" dancer who takes advantage of other's weaknesses. A dancer who sees the occasion as a meat market or an opportunity to "get a little." A dancer who uses the occasion to intimidate or harrass other dancers. For those cases, a ban may be the appropriate response. Fortunately these cases seem to be rare. Dale -- There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors.