Tin legs
Not long after Bader had been fitted with his 'tin legs', he visited a relative for dinner. The relative had an elderly, rather grumpy fox terrier which always wanted the same spot under the dinner table.
Bader sat down and a low growl came from under the table. Whereupon he instinctively moved his legs away...then, being the rebellious chap he was, thought "The hell with this" and stretched his legs out again, with a mischevious grin.
The growling increased in tempo until the dog sprang at his ankles and attempted to bite one of them. There was a predictable loud metallic CLANG followed by a yelp from the dog, which shot out from under the table with its hair on end, trembling with confusion. It slunk off to a far corner and wouldn't go near Bader for the rest of his stay.