Need to dissolve glue placed intentionally in a lock Someone intentionally sabotaged the lock on the front door of my house by putting glue inside it apparently, I have no idea what type of glue it is. Is there any chemical substance I can use to dissolve the glue instead of having to replace the entire lock?

Also, would heating the lock work?

I took a look at this, the heating option wasn't possible since they're talking about paper, but I was wondering if it'll work before trying any of the chemicals mentioned.

Please consider that I don't have much experience in Chemistry while answering, thank you for your time.
To paraphrase the link you mentioned,
Without knowing the specific glue, you should try different solvents to see if it dissolves the glue:

Start with a mild, non-polar solvent like paint thinner.
If that doesn't work, try a polar solvent like acetone.
If that doesn't work, try tetrahydrofuran (PVC pipe solvent)

All of these solvents are flammable and pretty nasty if you get them on you. To minimise risk, use small quantities at a time, minimise the time that the lid is off the container. The fumes shouldn't be too much of a problem if you're outside, but still take care.