The cat you mentioned may have been entire, he would also leave a nasty pong
Ive noticed that unneutered male cats tend to have chubby cheeks. This foriegn cat, had chubby cheeks and though I didnt get a chance to see his testicles, my gut instinct was that he was not neutered. By showing him my own cats, I wanted to "socialise" them and also show the foriegn cat that there are cats present in this house, so he might want to stay away.
Obviously as my 2 get older, the danger to other cats increases.
I know you are saying that its unlikely that my cats will drag another cat around, but Reflex is very very aggressive. The breeder told me that his father was a little lonely in his cage, hence they introduced another cat to keep him company in his cage. His response was to drag this cat by the scruff of its neck, around the cage. His father was very lean, quite small, but was very very strong. I expect Reflex to be exactly like his father.
Reflex is actually afraidycat, but once he gets involved in something, he goes at it full tilt and doesnt back off. And I'm not just saying this because he is my cat. I'm saying it as I see it. The video that I posted of him forcefully playing with Mr Bengal sums up his personality exactly.
Mr Bengal is larger/heavier but his energy levels are not as high as Reflex and if a foreign cat came into the house/garden, Mr Bengal is the sort to chase it out and then leave it. Reflex might go "all the way".
Reflex's behaviour is partially down to his breed characteristic and genetics, but also perhaps by the way I treat him - ever since he started biting me, I started to play with him quite roughly, where I am more gentle with Mr Bengal, as I doubt that he would appreciate my rough play. He is a gentle cat.
It'll be interesting to see how they both grow up. I shall keep this thread alive and post regular updates.