This has just happened and I didn't have a clue what to say and feel like an idiot!
So a man just came to my door and said he was staying next door for a few weeks and doesn't have wifi so wanted to use mine until they get it installed in a few day's time. That didn't add up to me as if you were staying somewhere temporarily then you would just use 4G or go to a cafe and use free wi-fi there! It's a rented house with various people living there and I didn't want to give my password out anyway but also he could tell the whole house and then everyone there could use it for free! It's also hard to believe that nobody in the house has wi-fi.
He was quite pushy and I told him to use 4G or BT wi-fi FON. He ignored this and when I wouldn't give him the password he got annoyed and said "So you're not going to give me the password then? I'm your neighbour!!" He added that his mum was ill in Pakistan and he wanted to phone her with my Wi-fi code...
I told him I was in a rush to go out (was in middle of drying my hair!) and I would get back to him. God knows why I said that, I just didn't know what to say and just wanted him to go.
Any ideas?! Don't know if I over reacted but there have been some dodgy characters next door and I just didn't feel comfortable potentially giving them all my password.