So, because it hasn't happened to you it doesn't exist?
I lurk on Lemmy 99.99% of the time because of previous experiences, this is my 5th username because when I first came over from Reddit I tried having the same attitude of getting stuck in to fun banter (which on Reddit did get me rape threats when I dared to post my honest opinion, but at that point I rolled with it), and several times I had men pick arguments with me over inane things which didn't seem to be a problem for men to talk about, especially on sh.it just.works
It's sucked the life out of my online involvement bit by bit, and this community is one of very few where I usually enjoy having conversations - something I credit with the ban on men posting.
Had to evacuate the building because due to the teacher in my chemistry class accidentally letting a bunch of bromine gas escape.
My sister had the same classroom evacuated after she made an explosive that burned the ceiling tiles and set off the sprinklers.