Has anyone experienced any thermostat failures?

A Girl over our way is on her 4th one in a couple of months ?

There were a few failiures of thermostat seals on 1.2s, and I seem to remember someones overheating because of thermostat failiure early on.

my seal went! Had to be towed to the Dealer by the AA , They fixed it and so far it has been fine!

Interesting guys. Thanks for that.