Never directly. I'm PAYE so the most I do is charge for a hotel I didn't use (and do a cancellation on the hotel). Not normally even to see a WG. Sometimes I'm in range of staying with one of my cousins or uni mates, especially in London. Never found a good way to fake a meal receipt believably, besides, I'm a fat ass, if work is gonna give me a food budget, I'm gonna use it
Wouldn't dream of trying to self assess tax claims with punting expenses, apart from the aforementioned hotels.
I've heard tales from dad when he was a Director of some security firm he'd have a credit card with 5k budget to spend on hotels, food, drinks, golf, concerts and yes, lap dance clubs, no questions asked especially for international clients (the deals were in the 7 to 8 figure mark, 5k is pocket change)