Not sure about the exact details, but quoted in the Guiness Book of Records, is a story about some "lucky" punter in the uk who backed a 7 horse yankee (multiple bets, inc. accumalators) all won at Mammoth odds, he was due a payout from that "LOCAL FRIENDLY SP BOOKIE" running into millions.

What he got was a pitance because of limits (in the small print) on doubles, trebles,& 4,5,6,7 somes.

I think we can definitly do without them!!