Long before I ever got into the hobby I used to be in the Navy stationed on a ship. In the galley and other places there was a real infestation of roaches (no doubt german). It was always warm and moist in there, and they would hide in vast numbers behind the deepsink. I worked for a time in the galley and killed countless numbers of them with oven degreaser. Finally the galley was fumigated by the HMs, and I was sent to clean it up. After I had killed tons with degreaser, there were still over four hundred in the dustpan from the gas. I hated them and shirked other duties just to kill them.
Later, the ship went to Mazatlan, Mexico and I was drinking on the beach and went to urinate in a little shack and there were tons of larger roaches in there, so I peed on them and enjoyed watching them run. They may have been discoids, but I would not have known at the time...does anyone know what species would be found in coastal tropical mexico?
Funny I keep them now. If I were still in the navy, it would be extremely easy to capture wild roaches and keep them on ship until I got into port. Wish I would have known.