Now the funniest thing I had in dominion was when a just-bought scout (still on defend) repelled by himself a barbarian invasion event*. Well perhaps not the most funny, but kinda impressive I would say
As it was in dom1, I renamed it with a nice name, and he even got some items just for him (eye of aiming, boots of quickness, staff of corrosion).
* : as soon as 2 barbs were wounded, the whole hord routed...