[niin]

"the owner of the firm wants everyone who participates in the pool to play only in the pool and not outside of it"

In a word, retarded. If I played the lottery and was in this situation, I'd either just not play in the 'office pool', or tell the owner to f-off. What you do on your own time is none of their business.

Just play other numbers in your office pool, and play your own numbers on your own.