Kyz DS1 gave it him to be honest. He's the brave one coz I'd of bloody killed him if O properly choked! not me.
Speaking of DS1, he's in the dog house for wrapping the fabric tape measure I've just used around O's neck. 
And for picking O up, then walking backwards while watching the TV, and tripping over toys which a) he knew were there, b) he's been told a MILLION times not to walk backwards holding O ever since the falling down the stairs incident
and c) not to watch the sodding TV if he is holding O.
RAAAAAH!
I'm not so sure O hasn't reacted to the soya yoghurt. He's been very clingy, but not quite clingy enough for me to say it's definitely a reaction. He was difficult to put asleep for his naps, but I'm not sure if the second nap was so difficult because he was overtired thanks to the bastard dog waking him from the first nap.
Will give it a week or two to settle again, and try again to see if we get a similar kind of thing. It's hard to say really, as he does have these kind of days sometimes anyway.
It's just that he started the morning so happy and cheerful, playing and being lovely. 
I've also realised today that O is most definitely a mummy's boy. Only mummy will do when he wants a cuddle or a kiss, or to sit on my knee, or cling to my leg. DP came home earlier and has been ignored. I opened the gate to let O crawl out to him. He looked at him, and then turned and raced for the kitchen
. Which is the opposite of his normal reaction - heading straight for the stairs where DP was stood.
He never pesters DP for cuddles and kisses, even though he gives them. As soon as I walk past and get spotted, or come in the room, he's straight for me crawling with speed, giggling and smiling away.
Yes, O, you think I haven't noticed how you never go to your daddy when I am in the room... 
I would like 5 minutes peace sometimes...!