Cricket

(as explained to a foreing visitor)

You have two sides:one out in the field and one in.

 Each man that`s in the side that`s in goes out,and

when he`s out he comes in,and the next man goes in

untill he`s out.

When they are all out the side that`s out comes in,and

the side that`s been in goes out and tries to get those

coming in out.

 Sometimes you get men still in and out including

the not outs.