Using the Aldi Workzone glue gun the other day. I left it plugged in while I cut some foam board. Maybe about 30 minutes. Then when I went to use it I found that the glue stick had melted in the open feed area and it jammed the trigger; wouldn’t feed. Ended up taking an X-acto knife to cut the clog away. So if I plan on not using that gun for awhile, unplug to avoid this.