If you were to find a wallet would you pocket the cash?

I found a wallet a few days ago. There was some cash in it, not much, however there was some. I dropped it off in their mailbox. Man, I wanted to take that cash so badly. I know it's wrong and Ive always prided myself on being someone who doesn't do that type of stuff.

I won't lie I did think about it and thought about doing a walk by type of check to see if it was still there. Internal struggles.