Would leaving it in vinegar actually damage it?
actually it would probably clean it.
Isn’t vinegar caustic?
Enough to eat through metal? I hope not. :fffuuu:
Put some Francium in the lock, that’ll unlock it.
Stick it in her pooper.
I support this notion.
Oh okay, but if I left it in vinegar for awhile would it speed up the rusting?
Seeing as rust is actually oxidization, I would think that things need air to rust.
:facepalm: silly me. I just want to totally mess the padlock up now.
By that logic, metal wouldn’t rust underwater.
Turn it into a sacrificial anode… as in put it in water with a less reactive metal. If you know what its made of I can suggest one 
Basically it’ll eat the lock, its the same way they prevent corrosion on marine structures and boat engines and such
Not sure what is is made of, but it is silver coloured, I then hit it with a hammer and the parts it hit went copper colour.
Yeah, I certainly don’t know how the padlock would be able to come into contact with oxygen when it’s covered in H2O
:facepalm:
You do realise I know that, right?
I commend you, sir: ‘I wasn’t sure, so I hit it with a hammer’. Fine work
If you have a copper alloy, then I would recommend graphite. It lies right at the cathodic end of the scale (the scale I have here in my uni notes, I don’t remember this kinda stuff 
) so it should eat away the copper quite nicely.
You need to combine them in an electrolyte; most people would think lucozade at this point, but dirty water does fine. Just salt water should get it going nicely
If you want to be extra in depth you can stick a multimeter across them, it should generate electricity. Then you can go on to global domination with your pencil/padlock based power stations
So, in other words, put it in salt water with some pencil lead inside?
Just next to it should be fine. A larger surface area should help if possible
Hmm, dont have any pencil lead spare, so what I have done is use the leftover juice from a tin of beetroot. The vinegar should corrode it.