Seiji had learned just as quickly thatn most people who spent time with Shirai would throw away or smash his possessions if given the chance and he really, really didn't want to have to go and ask that part timer for more feeder mice. The politeness was new to him but it was probably just to catch him off-guard.
"i-it isn't very heavy, see?" He said, waving it around to show how light his bag was.
((OOC: apparently continuing in the thread below))