Im probably being silly lol
Mango was on his swing and my mam walked into my room and was talking to Rocko and Loki and then she was talking to Mango and he was just sitting there but if I walk beside the swing he runs up to the top of the swing, why is that? But he dosent run when my mam is beside him.

Could he be worried that you're going to ask him to do something that he doesn't want to do? Your mother probably doesn't ask him to step up or come out of the cage or anything so he doesn't expect anything with her.

No I never ask him to step up I let him choose to do that but I never approach him to step up anyway unless he is on the floor, and he is never in the cage unless he is getting water and I never take him out.He doesn't or shouldn't be expecting me to do anything to him, I never touch him or go near him because I thought I was making him comfortable by not training and let him come around himself.

You'll need to think about the situation to see if you can figure out why he's doing it. Is it possible that he's running to the top of the swing because he's happy and excited to see you? Are there certain situations where he does it and other situations where he doesn't? Does it make any difference if you approach more slowly, or if you talk to him while you approach? You can try approaching him in different ways to see if you can figure out what he likes.

Nope he always runs to the top when I approach him in any way