This is one of them. And it’s a damn shame (via The Washington Post):
Spray no match for snake
GAITHERSBURG, Streamside Dr., 18300 block, Oct. 7. A homeowner discovered a large black snake in an apartment and sprayed it with bug spray to encourage it to leave. It didn’t. A Humane Society agent could not find the reptile, which had slithered away. Before the agent left, the resident was informed that bug spray is not an effective deterrent and could harm a snake.