OK, I've been sitting on this sighting for some years now... but I had kind of forgotten about it.
My brother used to get the Dandy comic (I got Beano)... the main character in Dandy was Desperate Dan, a big 'gentle giant' cowboy who didn't know his own strength. He was always trying to do right, but messing it up through his strength (he ate cow pies with the tail and horns sticking out and shaved with a blowtorch).
In one comic, in a Dandy Annual (can't remember which year) he was at CPR training with a dummy (and because this was a comic, there was no difference in appearance between the dummy and the real people).
He goes to give the dummy a kiss of life, but blows too hard and she inflates like a balloon before exploding, with scraps of her clothing being scattered around.
Anyone know of it. I might look for it next time I'm at my parents'.
I've seen an annual with an illustration of Desperate Dan with an inflated chest on the front. It may have been a theme that was often revisited.
http://www.youtube.com/user/nineteenthly