Bugs in random movement for 0.10B

I tried to combine random movement and WeekendObsession's PM gun, the bot will turn like crazy back and forth and move in tiny intervals at around 10 instead of 100.

It's probably because WeekendObsession has movement tied to the gun. In the movement command, the variable a is defined. If you define it outside the command(setTurnRight, etc), and delete it, then the bugs might stop.