scarier than a horror movie

Boys crack me up.  They think they are so though and manly.  Take Jeff for example.  He thinks he's very brave, and he can watch totally disgusting horror movies completely unfazed, but I say the word "epidural" in front of him he gets this funny tic where he shivers and freaks out for a few seconds.  Every time.  I wonder how often I can sneak that word into casual conversation before he notices or stops spazzing out?....