Yes absolutely. I've found that putting up microbarriers solves this. In your message ask them to reply with what they will use it for and a specific time they will be over to pick it up. This stops the emails I used to get that just said "WANT" and also the "my second cousin may drive in 3 weeks from now can you put it outside under the full moon next to the Starbucks store that's 27 miles from your house" type replies.