lol
I've got a dummy that releases gas lying on my couch watching sports right now!
good one. rotfl
The only time I've had a problem with blowouts was on cake layers that I had frozen, defrosted and then iced......these layers were definitely more "wet" on the surface from being frozen/defrosted.
I know others freeze all the time and don't have any problems, but for me and for the recipes that I use I've had problems with the icing adhering and with blowouts on layers that have been frozen.
I never have problems with layers that I don't freeze....
Go figure. 
The only time I've had a problem with blowouts was on cake layers that I had frozen, defrosted and then iced......these layers were definitely more "wet" on the surface from being frozen/defrosted.
I freeze mine fully assembled and ready to be frosted. When I take them out of the freezer, I remove the wrappings immediately and brush off any ice crystals so I have the same 'dry' surface that I put in there. I ice them on the spot stll frozen and finish the defrosting in the frige.
If the cold emating from the cake overtakes the icing and chills it too much I just a wait a few and it loosens up again and I finish.
For me, I like what the freezing does to the harmony of the cake. It balances all the flavors or something.
So my point is that you can avoid the condensation generated by the wrappings by removing them if that's ever a factor for yah.
I am of the belief that things *puff up* because they are warm OR because the air behind them has warmed -
ie: cake in oven,
my full tummy,
warm food put into a cold container - then lid put on
So altho something starts out cold - after having layers placed over it - the air trapped begins to warm = puff up -
just like me under my doona -
Makes sense because the air behind the sticker had to warm for the adheasive to begin to peel away.
perhaps
Bluehue.
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