Ignore them and stay away from as best you can. Unfortunately , it's pretty much everywhere nowadays. That's the way I usually deal with people like that. I just stay the heck away from them and meet other nice people. IGNORE ! It's best for you!
Laugh, always laugh!
The same way a dog deals with getting caught in the rain. Shake 'em off. You don't need people like that in your life.
I'm normally not a rude person but I was a little sassy towards someone on here earlier but today ain't a good day and I did apologize. But overall. I just ignore them.