Our company installed a control system in Marquette, MI in mid winter. Couple of our field service guys were there for the install and saw some guys out on Lake Superior ice fishing. Being Texas boys and never seen such a thing they decided to walk out there and check it out. Getting nearer they noticed those guys had a small boat with them. After talking to them a few minutes they asked why a boat out on the ice. They said sometimes the ice would unexpectedly start to break up, and so the boat. Our guys decided they had seen enough and quickly headed back to solid ground.
