True. I guess it could be argued that while appliances do go wrong from time to time, they don't usually explode in quite that way. It does happen on occasion but it's rare. However that's more 'unlikely' than 'surreal'. However, in Kryten's case an explanation is given in the episode. It's due to a negadrive overload, and his creator actually designed it to do that in petty revenge against her former fiancé! It hasn't happened before because it takes a while for all the negativity to mount up. On the other hand, I suppose the camera exploding when Lister records his confusing explanation for the crews return from death could be classed as surreal since recording devices don't react like that. It worked as a good gag though. Red Dwarf has always been just a little unreal. Not as far out a Hitch-hiker's Guide (particularly the books) but closer than a lot of more mainstream drama.