Even discounting the venom entirely, I would think that a gabby could kill a small child with those fangs alone, or at least do very serious damage, especially considering the power I've heard they can put into a strike.
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0.1.0 Ball Python - Shaman
1.0.0 Green Iguana - Ike
1.0.0 Tokay Gecko - Fang
2.2.0 Cats - Pumpkin, Furball, Pixie, Stitch
1.0.0 Cockatiel - Ozzy
0.1.0 Budgie - Tweetie
1.0.0 Dwarf Rabbit - Rascal
0.0.1 Rat who was too friendly to be eaten - Scabbers