Your potato bug looks like a cross between a cricket and an ant, on steroids that is! I used my ever faithful google and found pictures and a place that called them Jerusalem Crickets. It showed they were as big as a quarter. I don't blame you dad a bit. To start with, he may be like me, I'll face off a mad bull if I'm out in the open, but DO NOT put me in a cramped, tight, dark, crawl-in only place. I need AIR, and then I see that bug, I'm gone!!! Probably more of an excuse than anything, but it works. I don't do spaces lower than a tater or higher than a corn stalk. Just ask DH, he's tried for years and I'm not going up or down.