So you're at work, and someone calls with a problem that you really don't feel like handling. Luckily, it's really not your job, so you pass it off. But then you see how difficult it's going to be for the problem to get fixed without your help, and you start feeling guilty. So you resolve yourself to help. It takes you 20 minutes and it's over. You probably complained about it not being your job for longer than that. The next day brings a call from your boss about the incredibly happy person whose problem you solved.

It literally takes only a few minutes of little sacrifice to improve someone else's situation, and in turn, your own. Why must I re-learn this on a daily basis? What happens overnight as I sleep that deletes that little tidbit of information from my brain? Do humans have their own version of random access memory?