I had a friend set fire to a model. He was in the shed having a fag and doing some work on the a plane, he put the fag down and the plane-knocked the fag into the cockpit and it began to smoulder, he went out of the shed for something, came back smelt something panicked and knocked over a small bottle of meths-yep, straight onto the model, hot plastic, burning fag and meths, a small fire ensued. He put it, stopped smoking and the model went in the bin.
Personally I have stuck things to myself, spilt extra strong glue on nylon shorts and it burnt the material and my leg...knocked over paint...sat on a model.
This modelling lark should come with a warning I reckon... :D