You can take the dog out of the farm...

Hi,

I have a Border Collie that is from a farm and did not get socialised with people so when we take him on a walk he tries to nip people. We have worked on him and he seems okay when it is just one person walking by him- or herself but if it is more than one he tries to nip them.

He is our first dog so we do not have much experience in traing him. Please could we have some tips to stop this happening?

Tamsin (age 11), by email