My five-year-old is extremely affectionate then suddenly obsessively annoying to both people and animals that he loves.

It's the strangest thing. He's a very affectionate and sensitive kid. He can be very sweet to those he loves...then suddenly turn on a dime and be the most obnoxious little shit. And usually the annoying behaviors are physical in nature, and gradually escalate.Some examples: he'll be on the couch with his grandma's dog sleeping beside him, pet him softly, lovingly, give him a kiss, etc. Then the petting turns into soft little pinches...then slightly harder pinches. And harder. Until the dog has had enough. Or instead of escalating pinches, the soft petting will gradually ramp up into hard petting, then taps, then harder taps, then hitting the dog on the head until the dog reacts. At which point he laughs gleefully.Or he'll be playing nicely with our three-year-old, then just lay on top of him - not play wrestling, just laying on him like a pillow, until the three-year-old starts yelling for help.What is this bloody COMPULSION he has? Is there a word for this? Is this part of some sensory issue? Or is this just normal annoying behavior for a 5 year old? via /r/Parenting https://ift.tt/2voczuG