Accidentally recked my friends garden

One night I’d bin round my best friends house until it was late and it was dark when I went home I was reversing my car out of there drive when i felt this bump and after that i had to rev the enjine dead hard to get the car to move I new my back tyre was almost flat and I figered it might of bin that but anyway I just kept going and when I got on the road it was ok again so I just carryed on home well next morning my friend called and said the flower boarder down the side of there drive was ruined cos somebody had drove over it and all the plants was mashed up in the mud I new it must of bin me what done it last night oops