So, guys.

Last night while dancing at my regular venue, two guys dropped me (as in, attempted to do a drop and actually dropped me, without having asked me if I was okay with dips/drops - thankfully no injuries were sustained).

I feel I should give people who do that a bit of a lesson in etiquette. What's the best way to do it, without putting people off ever dancing with you again?

What about other, perhaps lesser breaches of etiquette - like not cutting your nails and ending up making holes in your partner's knuckles? (This also happened to me last night.)