I was in the garden the other day and there was a praying mantis on my arm. I tried to brush it off and it ran around my back and I could not reach it then I turned my head and it was on my shoulder! I actually freaked out when he ran around my back, I almost stripped down right there in the yard. I am NOT a bug person, good or not. I would have just picked him up but he was at least 4 inched long and his body was the thickness of my thumb, and I was not 100% those things will not bite you.