Master and apprentice

If you're apprentice lvl up to a certain lvl, both the master and apprentice will get a reward

This one is nice. Also, it could go with other ideas in the forum about clans, or guilds.. or making the game a little more social...

I like the idea, so much that I posted this before seeing this topic
http://www.haypi.com/forum/viewtopic.php?f=640&t=18805&start=10

Too funny, but a lot of people feel the same way.