Etiquette on misclicks online

Today I got some abusive messages off a player because I did not let them take back a move after a misclick.

Personally, if I misclick I just play on - mistakes happen and I should have been more careful. It's just part of the game to me and if you or I have made a mistake then it should be exploited.

I haven't been playing online chess for particularly long so was wondering what the general consensus is on misclicks.