i know!
8 c, R8 E& M% s0 o- W5.39.217.76when they can have 15 mins discussion.tvb now,tvbnow,bttvb' [& @$ g) G+ }/ W
make 1 of them to do a specific job whcih is counting4 `4 B$ v1 V' H5 E
only him can turn on off off the light.5.39.217.76+ A& P; }. j" L
Basically, if you are the first time to get in the room, turn on the light, ( D; k: F" Y' O! g" ]1 ~
then wait for "the special man" to turn the light off....
- }* ~' g1 N) |/ I+ |tvb now,tvbnow,bttvbwhen "the special man" count in up to 30 (included himself)
9 c( c0 |$ B/ T. z/ |then it is done! |