It is probably (if this is what it is) very easy to fix and Mr. Clod should be able to do it no problem. If the male end where the hose connects is broken it could be another matter.
If the hose just got knocked off, its nothing more than slipping it back on.
I have a feeling one of my kids, when they were younger like yours, accidentally knocked it loose. Have him take a look and see where its dripping from when you start the car.
Oh and I won't do the need additional data, facts, info post yet.
