Laughing.
Is the Covid in the room with you, right now?
Still laughing!
Nope, I'm not too worried about Covid coming to my house, I'm sure I'll survive it if it does.
I do work work with some good people with underlying health conditions that would likely be in a world of hurt if they catch it. If practicing good hygiene and wearing a mask when asked helps reduce the chances they may catch it, then I'm in. Are masks 100% effective in preventing C-19 transmission? Nope! Current thinking is that wearing masks may reduce the transmission rate by 65% depending on the type of mask and how it's worn.
Refusing to where a mask in places that ask or require it is just as much of "virture singling" as wearing a mask everywhere one goes.