disregarding any other passengers, and assuming there is a driver, i think there would be TWO legs, as surely the cats and kittens would have a bit on the noisey side and the driver would have made them get off the bus, stating that what the children were doing would come under animal cruelty, anyhow if i am wrong ( favourite outcome) the children may have had a kitten or two in thier back pockets (ouch) mmm...just thought - what about the legs on the seating ? oh yes, and have all the children got two legs, some may only have one, and kelly from the isle of man may be on board. (i'm off - gettng fed up now ) must dash - my bus is due !