Depending on the pronunciation, "ha" can be Chinese for "frog/toad." I find it offensive that Santa may be calling out "toad toad toad" in Chinese and could possibly direct it at me.

I would like to inform this fact to the mall who fired Santa. If I am ever in their mall, and I hear "ha ha ha" being directed toward me, I'll sue. I am so emotionally fragile and unbalanced that I can not withstand the affront of being called a Toad in Chinese. Really. I'm that fragile.

(This is tongue in cheek, but really, let's be serious. Ho ho ho!)