yea i used to do that with my lighters i used to nig rig them so i could burn peoples faces off but one day it backfired and from that day on i make sure not to do it to other people cuz it will come back to you i burnt my moustache and my nose hairs got burnt and i had the smell of burnt hair in my nose for like a week and yes eyelashes will grow back they are the slowest growing hairs on your body