Yeah, learning windows 3.1, a pirated version given to me by my grandpa, I used to sit there watching him make pirate copies of games using this slow AF floppy disk copying software.
Yeah anything that throws it back on them is what you need, “why’s that?” is my go-to, just never give a definitive answer to their first question, it’s always a trap.
If you had a basement that lead up to that drain you could put some mesh angled down, busy a hole into the the drain from your basement and if some stranger tries to grab your keys you can drop them inside.
Pro Tip: when someone asks you an open question like this, always reply with “why’s that?” It forces them to either tell you what they want or bail on it, either way you get time to come up with something to get out of it.