I've had to duck for a goose before. I still had one shell left, ducked as she brushed my cap and kept shooting. Were not sure who shot it me or my buddy.
Teal might be faster than a mallard but when you've been shooting decoying geese and the mallards come by, man what a difference in speed. Ducks can really be humbling. Geese are like a b52 bomber coming in with one engine out.