Oh, mangles...I've had a run in or two with those...ruined a couple of duvet covers when I was staying at a friend's apartment in Stockholm. I, too, was bored one day (happened to be the day the laundry facilities were booked for the apartment's use). So, I thought I'd be nice and press the duvet covers. After all, that's what mangles are really good for (we did this in Germany all the time). I guess I was a bit rusty. One of the covers got stuck in the mangle and started to scorch rather badly (had there been a smoke alarm, it probably would have set it off...). I ran down to the apartment and grabbed a knife. Ran back up to the laundry area, and hacked the duvet cover out of the mangle (I had the foresight to unplug it first). The other one got stuck as well, but I was able to extract it. I just couldn't get the scorch lines out. I haven't touched a mangle iron since. They did a really nice job (when used correctly and the cloth didn't get jammed).
The take away from this story, should I ever come to visit any of you who have a mangle iron--hide it.