Dear Abby,

I've never written to you before, but I really need your advice on what could be a crucial decision. I've suspected for some time now that my wife has been cheating on me. The usual signs... Phone rings but if I answer, the caller hangs up. My wife has been going out with the girls a lot recently although when I ask their names she always says, "Just some friends from work, you don't know them."
I always stay awake to 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 gotten out of the car round the corner. Why? Maybe she wasn't in a taxi?
I once picked her cell phone 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 broached the subject with my wife. I think deep down I just didn't want to know the truth, but last night she went out again and I decided to really check on her. I decided I was going to park my Harley Davidson Heritage next to the garage and then hide behind it so I could get a good view of the whole street when she comes home.
It was at that moment, crouching behind my Harley, that I noticed that the rocker boxes on my engine seem to be leaking a little oil.
Is this something I can fix myself or should I take it back to the dealer?

Thanks, Bob