School Boy mistakes some times come good!

ok, I' m obviously very new to sports trading and it goes with out saying I've made some very school boy mistakes over the last month. Silly things such as looking at a very low Draw lay price whilst its still 0-0 at 20mins, thinking that's great, slapping £5 on it and an then realising its the half time market!
"Bright. Less speed more haste!" a phrase often shouted at me in my school days as I be running through the corridors repeatedly dropping things and having to go back to pick them up.
I made another one over this weekend.
I thought I'd have a look at the F1. Qualifying had just finished, I click on the Spanish GP to see what odds were about. Maybe I could spot something that might trade lower in race.
One price stood out at me. I had a second look. Yep that really did say 400. Pastor Maldonado, just qualified 2nd in the Spanish GP, had £4 worth of odds at 400 available. Of course I took it. Who wouldn't right? well, maybe me if I'd been looking properly!
I had indeed clicked on the Spanish GP in betfair, but that had only given a drop down of markets available. The odds on the screen were still the odds for each driver to win the championship! Nuts... is about the 3rd thought that entered my head.
I did sit on it for a few moments, then it occurred to me that Maldonado was still 2nd on the grid (later to be 1st as Hamilton got a 'back of the grid' penalty) there is a very good chance that he might trade lower than 400 in race. So I worked out the best odds to get my money back and maybe a little something. I placed a lay at 160 for £10 and left it. At this point I didn't know about the penalty for Hamilton, the price I put in was picked to allow me to realistically get matched whilst still getting something out of it.
Fast forward to next day, I've come in from football and the race has about 15 laps to go. Maldonado is winning! I have a look and his Championship odds were down as low as 60! I have a look at my bets and my 160 lay had been matched 30mins after I'd taken 400 back. I was green £6 across any driver for the F1 Championship and its conclusion still months away!

I guess sometimes a School Boy mistake sometimes does come good, but I wouldn't bank on it!, and yes... sometimes I did make it to class with out dropping anything.