[good times]

Excellent Chicup, I can only think of one other mistake we see quite often.

Being possessive of playmates,
We see this one often and have had it happen to us on occasion. This mainly applies to the club situation but can also happen when a couple expects a playmate they have played with to meet them whenever they are available. What usually happens is that the newbie finally meets and plays with a couple and has a great time, then whenever they see that couple at the club or have time available they expect that couple to play with them. If this couple they played with before isn't in the mood, or has other plans, they then take it personally and get upset. Newbies often seem to take it especially bad if the couple they played with can't meet/play with them because they are meeting or playing with someone else. So, if you play with someone, don't assume they will want to play with you every time they see you, or that they would want to play with you to the exclusion of others. It doesn't hurt to ask, but if they decline don't take it personally or assume they never want to play with you again.