Not something most of us would want listening for questions all the time, but nice to see the included humour.
Q. Okay Google, mirror, mirror, on the wall. A. You might have confused me with someone else. My engineers haven't installed the fairytale module yet.
Q. Okay Google, self-destruct. A. Self-destructing in 3, 2, 1... Actually I think I'll stick around.
Q. Okay Google, talk dirty to me. A. Grime. Grit. Mud. Limescale. I could go on.
I suppose it is actually learning all the time from previous interactions - which is slightly sinister and could go horribly wrong - like teaching a parrot to swear then the vicar drops by.