Spacewalk humor

You can tell that Mike and Gennady must really get along by all the "short"
jokes Gennady was making last night during the spacewalk. The one that
really cracked me up was when they were doing the tool check before
switching back to Russian control and Gennady said "In deference to Mike
I'll keep this short" (or something like that).

Nice to see them having a little fun... I know that spacewalking is a
serious business but sometimes you need a little humor to break the tension.
:-)

And what was up with Mike speaking in Mandarin when they crossed China?