i know!
. k4 i1 q4 d% C0 b2 owhen they can have 15 mins discussion.5.39.217.769 x6 e% u) Z' Y; s( O* l2 V" o
make 1 of them to do a specific job whcih is counting
2 d) g* ? X7 j6 s4 ctvb now,tvbnow,bttvbonly him can turn on off off the light.tvb now,tvbnow,bttvb% `6 n7 L7 m: k2 V( X
Basically, if you are the first time to get in the room, turn on the light,
, V5 N1 J( V8 d( Z. U4 b i; E公仔箱論壇then wait for "the special man" to turn the light off....tvb now,tvbnow,bttvb+ m( j- B; f* V* M4 H
when "the special man" count in up to 30 (included himself)
" V; @4 [( f; n3 f8 j% ]then it is done! |