i know!公仔箱論壇4 n( }- C/ I5 E+ X
when they can have 15 mins discussion.+ H6 J8 Y, L2 {2 S# x" L5 \
make 1 of them to do a specific job whcih is counting
0 C& V- }% T; X0 @tvb now,tvbnow,bttvbonly him can turn on off off the light.# z( e2 B; [: E: E
Basically, if you are the first time to get in the room, turn on the light,
, F8 N2 l9 i& _! h- `then wait for "the special man" to turn the light off....tvb now,tvbnow,bttvb. A, [" T. H" P8 C6 j `$ l
when "the special man" count in up to 30 (included himself)
3 C# x( ?( E/ u' k; E3 ltvb now,tvbnow,bttvbthen it is done! |