Stupidity: Characters repeatedly make note of how hard to kill the Wraith are, but sometimes, especially in the final episode(s) of season 1, they go down easily in a few bullets each, and then don't even regenerate as the characters turn their attentions elsewhere.
Stupidity: Jaden places a wet cloth on Blair's forehead. However, he places the cloth on top of Blair's fringe, instead of brushing it away, which would make it harder for the water to touch her skin. (00:03:02)