@Donnie *********
yeah, I've done that too (pet permit!).
as far as you coming back, it's totally acceptable. as for your 4-legged friend, I'd email the AQS and ask if there are any limitations on re-entry per year. also, if you still have your customs receipt (for your dog), take a picture of it or save it so you don't have to pay again when you come back through (they told me to do this at the customs desk BKK)!