"Q: I have a PS3 and a Nintendo Wii and I use my neighbor's Wi-Fi to use the ‘Net. My question is, can I boost his signal from my apartment without plugging into his router? --Jack
"A: Let's assume, for the sake of ethics and neighborliness, that the prior conversation with your neighbor went something like this...
"You: "Hey neighbor, can I use your Wi-Fi signal for my PS3 and Nintendo Wii? In return, I will walk your dog!"
"Neighbor: "Sure you can use my Wi-Fi signal, but I don't have a dog."
"You: "Thanks! Can I plug into your router to boost your signal?"
"Neighbor: "Nope!"
"So the question is, how would a totally ethical person behaving entirely on the up-and-up improve signal reception from a generous and fully-informed neighbor?"