That would work too, I guess, but I was following OP's style to make a point.

A = german shepherds/events
B = Dogs/caused or random
C = Mammals/human actions

A = B

B = C

Therefore

C = B

And Naturyl, as for

>>>
Are you suggesting that there are events which are neither caused or random? That doesn't make any sense. Events either have a cause, or they don't.
>>>

That's exactly what *I'm* saying, at least... and unless you claim to have the universal laws of physics worked out 100%, you'd have to be at least open to the possibility... What do you think caused the FIRST CAUSE? I'd like an answer, if you've got one, because it should be good...