Thank you all for the compliment.
@Nomrbddgs: I can't really say Tillo behaves better with his harness on or not.. For us it is easier to catch him when he has it on.. And with a long leash attached, it's better for the neck when he has reached the end
Maybe he does listen a bit better, because we are more relaxed? Hmm.. I will pay some attention to it next time he's loose.
@Yodels: I don't know the brand of the harness. It's a safety harness for in the car. We never use it in the car.. but it works great on walks!