...I can now add Hon Rou Tou to my list of memorized yaku.
(mostly because I realized it's more or less the exact opposite of a hand I already knew, Tan Yao.) ^_^;
EDIT: Thinking on it, it's less so that I don't know the hands (though there are ones I fail at remembering) and moreso that I tend to forget the names attached to said hands.
Like Ii Pei Kou. I knew what tiles were generally needed for it (two of the exact same sequence. 2-3-4/2-3-4 pin, etc). But never really kept track of the name. Until now. >>;