I recognise this style of fun. Ds2 has been similar for awhile, we have just put it down to age, stress (we have had alot happen in the last year or so) He can be fine for a while then we'll have weeks of not being able to take him places because he cant cope/ plays up/ I cant cope with the emotions, but also find that creates problems in turn because then its a big exciting thing when we do go out and ..... It does get better when they get older and can self regulate. We just make sure our kids know- you behave like... and we go straight home, and give them a warning- if you carry on like this we will go home. At the start of an outing I run through what I expect of them- that way everybody knows- we dont pick things up off the ground, we hold a grown ups hand or hold the pram etc.
:hugs: