Well, I am an advocate of the dummy for settling my son at night. He has been using it since he was about 3 days old. I have always let him have a dummy at night time and throughout the night he generally will find it himself.
But this morning he was on the couch with me and was trying to get it into his mouth the right way (it is a NUK dummy - so they only go in one way) and all of a sudden he started to make choking noises. I looked over and the dummy was COMPLETELY inside his mouth and he couldn't get it out!!!!!
Luckily it wasn't stuck fast and I fished it out myself. I am scared to leave him alone with it now in case it happens again.
I am going to report this to NUK. I mean they do say to use it supervised but he WAS with me on the couch and it still happened. This is really dangerous. Maybe they should change the design of the bit with the handle to make it a bit bigger or something.