cas (04/17/83)
(I originally sent this to net.misc, not realizing there was some discussion of this here. Sorry) A couple of days ago I visited some friends who had one of those ultrasonic noise makers which are supposed to drive away roaches, other insects, and possibly mice, etc. I don't know about the mice, but the group of about 10 roaches of all ages living on the speaker didn't seem too terribly upset. Cliff Shaffer ...{mcnc,we13,seismo}!rlgvax!cvl!cas