Plant markers on the squares that they click. A few macros follow RS gold a pattern when clicking and they may be distracted by something. This can cause them to click in the wrong spots. Place your pet's familiar near locations they're clicking like flax. This will make them confused or even stop them from taking that thing.

If you are in the world of a member, cast tele-other on them. If they refuse to receive help and receive help, they will see a large window appear on their screen. They will be able to use their pickaxe/pickaxe/net to capture it, giving them an cheap OSRS gold additional inventory space.