I am starting to think that Mason really doesn't want a new brother or sister. Example numero uno: He stole my thermometer, the one I use to take my temperature every morning and HID it. Luckily I spotted it under his toy shelf while I was laying on the floor in his toy room today. Good try kid.
Next? He likes to jump on me and bounce on my stomach as if to say, "Take that evil potential-sibling-eggs". He also getting really, really close to 2 which means him screaming, "MINE" a lot and throwing himself to the ground, whining and going on food strikes, much to my displeasure and really making me rethink the whole 2-child scenario.