I need some advice on what could be a life changing decision. I've suspected for some time now that my other half has been having it away with another bloke. The usual signs. Phone rings, I answer, someone hangs up. She started going out 'with the girls' a lot recently although when I ask which girls it is always "Just some friends from work, you don't know them".

I always look out for her taxi coming home but she always walks down the drive although I can hear a car setting off. As if she has got out of the car round the corner. Why? Is it not a taxi?
I once picked her mobile up just to see what time it was and she went berserk and screamed that I should never touch her phone again and why was I checking up on her.

Anyway, I have never approached the subject with my other half, I don't know how to. I think deep down I just didn't want to know the truth but last night she went out again and I decided to check on her.

I decided I was going to hide behind the Land Rover, a 1984 County Station Wagon, which would give me a view of the whole street so I could see which car she gets out of. It was whilst crouched behind the van that I noticed some penetrating rust on the rear crossmember.

Should I use a brush and some Hammerite, or should I have it seen to professionally?