Also, it won't let me use the chain on the balcony in Tyr at night as a rogue (it keeps saying someone would see me).
Additionally, I think I may have reported this earlier, but you can infinitely pickpocket 3 gold from the passed-out drunk at the Thieves' Guild.
Finally, using the toolkit on the mausoleum an incredible number of times in a row causes the skill up to disappear to the left side of the screen and never pop up again when it comes to upgrading Thievery. (haven't tested if it does that for all skills afterwards or just with Thievery)