Wait until somebody else connects to have his MAC, then wait until he disconnects. Otherwise, you'll see a ton of RST flying, making your connection quite usele

Wait until somebody else connects to have his MAC, then wait until he disconnects. Otherwise, you'll see a ton of RST flying, making your connection quite useless. That's a good enough deterrent for the typical "attacker", who just happens to need a connection here and now and saw a network using WEP.