I am sure I am not the only one here but my Yorkie did NOT get grumpy nor did he get big (still only 5 pounds

) I DO want to tell you that the FATHER of my Scruffy (who obviously isn't neutered) STILL lifts his leg on everything in their house and marks everywhere they go. You may certainly continue to have this problem if he doesn't get neutered. It honestly didn't effect Scruffy other than he lifts his leg a LOT LESS (only trees, bushes, nearest pole) and NEVER lifts his leg INSIDE, and there is a LOT less humping going on

He's still as loveable as before getting neutered, if not MORE LOVEABLE!!!