No doubt this guy
really loves his cat, and isn't afraid to show it... and there's certainly nothing wrong with that. But I suspect that Rengar is seriously reconsidering his choice of humans.
If I did something like that, my girls would probably freak out, and I'd have to dig them out of their bunkers.
On a side note, I have to question if Rengar's cone was even necessary. Since 1989 I've been personally involved in somewhere around 18 or so spays and neuters, and not once was a cone provided or even suggested. Maybe we just got lucky, but there was never any post-surgery problem. Probably erring on the side of caution, I guess.