Where are you guys at on your Heart Gold/Soul Silver playthrough?

But...Aqua Ring lasts until you switch out. If it uses it just once, I'll be forced to continually knock it back down to 1 HP until I can catch it.

Oh, I didn't know it's essentially a permanent Leftovers effect (assuming the pokemon stays alive/unswitched). I never used Aqua Ring before. Taunt it is then.