thanks for the replies guys , i read them before i met her.
This is an update of what happened.
I took Tia with me as it was to be her life long playmate and it was her that was going to make the final decision.
My first thought was that it was huge , no offence to anyone with yorkies over 20lb! (bearing in mind its not a year old yet and Tia weighs 5lb)The second thing was it peeed over the owner when she put it down! The decider was Tia had her ears back the whole time and snapped at it when it towered over her.
Don.t get me wrong it was a lovely natured dog and Tia gets on with all kinds normally, but I had to go on Tias reactions. The owner has other people looking at him so I don't feel guilty.
So she is still an only child, but she seems happy enough and if shes happy so am I lol