I've never met a six and a half or so foot Spaniel! your Government trained me as a big killing machine ;-) a few years back now.
For a big guy I am very calm and peace loving, I've dealt with drunks, road rage, idiot offensive customers and contractors over the years and have always been able to be "Mr Cool" and I rarely lose my temper.
I and my wife and family have also been supporters of the RSPCA for many years. The attitude and approach of the RSPCA woman had me near to throwing away years of good behaviour her approach was so aggresive. I had one fit healthy dog on its lead, showing no signs of distress, heat trauma or suffering. All she wanted to do was join her mum and brothers runnig in the nearby field with my wife and family.
If it were not for the dog on the lead I really was worried that I could have hit the woman, something I have never ever done.
As said the windows have protection for the dogs and for security so no child or adult is going to get bitten!
I well understand the valuable work of the RSPCA and we have raised as a family several thouand pounds for the cause over the years.
But surely a litle respect and assesment before launching into an aggresive verbal tirade is not to much to ask for!