As a new user of a portable shanty I realize PORTABLE means able to put up and take down and move; but has anyone left their portable(securely ice screwed) on a specific lake overnight for a couple of days fishing.A few friends have indicated that if the portable is located near a group of shantys(bobhouses) it would most likely be OK(ofcourse they didn't shell out the money for the portable);yet a fisherman I know has left his portable at a location and has found other fishermen(sic) have trashed it and he has even found other people using it when he has arrived for the day.Other portable users have indicated they never had a problem. Just looking for some feedback?