House has also been known to act as a mooch at times, frequently stealing food from Wilson. In "You Don't Want to Know", while House is searching for the cause of Thirteen's twitching, he claims to have stolen money from her wallet. In the same episode, Wilson later observes that House's blood type is AB, the universal recipient, reflecting his desire to take whatever he can. In another episode, he reveals to Wilson that he's been borrowing larger and larger sums of money from him without paying him back, just to see at what point Wilson would turn him down.