And realize that 1. Losing a game is no big deal, just move on to another game. 2. Intentionally wasting your opponents time won't bring yourself anything but a report. 3. If your time is already running out, don't try to disconnect to harass your opponent even further. It doesn't work.
Redacted the user's name. Please don't publicize users' names in situations like these. If you have a problem with a user, report them in-game. If you see them persist in behaving poorly over a longer period of time, you can contact Blue Manchu about it at support@cardhunter.com.. The forums are not for shaming users. Thanks!
I will point out that as far as online gaming goes, this community is very mature from what I've seen. There are always bad apples, but are also just bad episodes by good apples. I'm one of those people that likes to say "Good Luck, Have Fun" and "Well Played", etc, most of the time but sometimes I'm just a grumpy old man.