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Thanks guys, you've really helped to calm me down a bit. OH is at worked all stressed out because I had to call him and let him know in case they were sneaky and called him today.
2_sp - it was their own dog that knocked him over, so I guess they wouldn't be able to make a claim against themselves and get pennies back.
Alba, They talked to OH whilst waiting for ambulance, again no-one was around when OH told them it was their dog that knocked him flying, they didn't see which dog it was.
They have a house in france (again, talking whilst waiting for ambulance) that they had planned to go to and do up and then live there. I guess they are losing money having to stay here for the time being