Are consoles harmful without electricity?

I have an Xbox 360 and a ps2 I would like to put a deco in my room. I sleep in the room where the 2 consoles should go so I would like to ask if they can be harmful even if they are not connected to the electricity.

Yes, they are radioactively contaminated

You could fall down and hit your foot.

Why should they be harmful at all? As Spiderpig42 said, they may fall on you, but that's about it.