discipline

I agree suzied, it avoids tussles and applied judiciously keeps everyone happy.

Grannies can resort to bribery in my book. A bag of chocolate buttons in the pocket can be used to great effect in many situations.

How do his parents deal with him? Do they have the same problems. I think you do need to find out if or how his parents manage his behaviour.

I just googled this "simple ways to get children to behave better"
and loads of stuff turned up.

Setting out exactly what you expect from him before you go out to wherever it is important so he knows what he should be doing.
Just shouting at him will do no good.

Rewarding and praising good behaviour is generally more effective than punishing bad behaviour but if a child is misbehaving you do need to apply the sanctions firmly.

Lots of stuff on t'internet.
www.parenting.com/article/easy-ways-to-get-child-to-behave

www.psychologytoday.com/blog/resolution-not-conflict/201202/three-ways-use-play-get-kids-behave

Bribery. Have a little treat in your pocket. It's the same approach as puppy training!

I agree that bribery of some sort or another works well at that age.

When they're older they can understand 'just one more go' but at 3 suggesting something you know they'll want will do it!

Good tips by Leticia.

I wouldnt beat yourself up about this jaeco. I dont think that most people find the situation you have described very easy.
I have been trying to think what I used to do and cant remember!

Give him plenty of warning so that it isn't sudden. Have something to do next so that it isn't 'we must go' but 'now we are going to ........'.
Or try asking what is the last thing he wants to go on and then distract to get out like 'race you to the tree' etc