I am kicking myself about this. He had a packard bell which was not picking up SSIDs or wireless traffic, so I assumed the anthena had broken. I have since discovered the anthena can be turned off using hot keys, I supplied a USB wifi card in order to solve the problem. I am worried that he will find out and think I am a complete pleb, what do I do? I am beating myself about this because it was such a silly mistake to make.