Just reading through this thread... Definitely a bit of a concern...
Can attest to the same "it hasn't happened to me" way of thinking but really the justification is that they are just so damn convenient.

A little common sense does go a long way but I will certainly be on the lookout for another option that matches like for like in size, etc. DO NOT want to have to start carrying a gas bottle around (and don't want the double burners anyway) and most of my cooking is done on the rear door table so need another similar option....