My friend, put in $1.20 to buy a bottle drink. Came out about 6
bottle drinks. Share with all of us haha. 
I wonder if we try tying a string to a coin and insert it in then
pull it out, can trick the machine or not ah? Last time, during
primary school, got trick to make a phone call in public phones
which uses 10cents one. Can make the value until a lot a lot with
just 10cents then can talk long long.. 
