fulltilt randomly deposits 25 bucks?

[Doc T River]

Ethics dictate that you contact Full Tilt to give them the chance to correct the mistake.

I once had 100 FTP deposited to my account and I play nothing but freerolls and play chip games. I contacted them and they told me it was a mistake, but they would not take the points away. Not sure they will do the same for you, but as I said, ethics dictate that you write them.