If you haven't already done so, I'd recommend taking a small child (in stroller) to the Universal theme parks.

We started the baby swapping in IOA by following what we perceived to be the rules, i.e. eihter Sue or me stands in the normal line while the other waits for them to arrive, do the ride and swap.

That was until we saw whole families of Americans walk to the front of the line, deposit their child with a single child minder, ride (at least once) sometimes even swapping the child minder during the process and wander off to the next ride.

After a couple of these occurrences, we decided to indulge our dark sides and follow the American way. We were able walk to the baby swap area (normally at the front of any queue) leave Sue or me with Conell, ride, swap, ride again and move on within minutes, even when the usual wait time was around 60 minutes.

Normally, I'd never do any of this, and probably get annoyed with those who did, but then the attendant on Dudley Do Right actually recommended that we did it as its what everyone else does.

So now that's exactly what we do.