There is an "avoid" option you can use to make sure you do not play again with him on a casual game. In my experience, most of the recent increase in bad behavior is lockdown related - we are also seeing increases in domestic violence, family breakups, and general rudeness outside of the bridge world. And yes, we are seeing some very stupid abuse by players who have just made a silly mistake. Where I live, I have just been given permission (by our government) to spend two hours a day outside my apartment, after months on a single hour. While I am old enough to be over the temper tantrums of youth, I understand where they are coming from right now. Stay well, take care, and we will be over this whole epidemic some time, hopefully soon.