He will be 3 in October. Over the last week or so he's been a bit of a menace. In he's well behaved and the loveliest little boy but he can certainly be mischievous, he's always an angel at nursery and they never have to tell him orr for anything. He rarely tantrums, he will often just do naughty things for a reason that isn't always clear, sometimes it's tiredness but a lot of the time it's just out of the blue and he will often be laughing when he's doing it. Examples are; he threw his toy car directly at the tv and the screen broke, swiping things off the table, he has broken 3 lamps by knocking them off the side table (I didn't bother replacing it after that), he threw a mug and the handle snapped off, swipes things off his toy kitchen and his books, I offered a cracker and he didn't want it but took it anywhere and crunched it all over the floor (he has done this a few times with other foods), tipping things out, throwing things down the stairs, grabbing DP's glasses off his face and throwing them. There are definitely more but they are just a few examples. 9 times out of 10 it's difficult to stop him because you don't see it coming, he can be totally fine one second and the next wrecking something. Our wood floor that I only paid to get sanded and stained a few months back is now also wrecked off where he's thrown things.He's never tantrumming when he's doing these things so it doesn't seem like a cause of anger or being upset I don't think.
These are all spread out incidents and he is not like this all the time, but for the past week he's been consistently pretty badly behaved. I feel like such a rubbish mother because I obviously am not managing it very well and I really need advice on how to discipline this. Obviously I tell him off each time 'no, we do not break things/throw things' and remove the item or I will tell him it's naughty and not to do it again but obviously that isn't working and he's taking no notice and it's not effective. I feel like he should maybe be past this stage now? How would you discipline your toddler for similar incidents? I feel like I spend my life asking him not to do this that and the other and picking up the mess. I was really upset last night when he was in bed thinking I'm doing a really poor job of creating boundaries and managing behaviour.