i know!
! Y/ M9 V& k7 f9 l- m( H% mwhen they can have 15 mins discussion.5.39.217.76/ D1 t) p/ F* o
make 1 of them to do a specific job whcih is counting公仔箱論壇+ C. ]( `) s ~$ w, b
only him can turn on off off the light.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。( \" w! W+ a. ?$ W# {
Basically, if you are the first time to get in the room, turn on the light, & d4 T- l$ o, c+ j0 ?% k- \
then wait for "the special man" to turn the light off....公仔箱論壇% U' K& |6 [* K8 Z" B! z+ J
when "the special man" count in up to 30 (included himself)
# k: X& o5 c3 c( S& Rtvb now,tvbnow,bttvbthen it is done! |