Three boarding requests so far but none have yet worked out. Are last minute, same day drop off/meet & greet requests common?

We're new to Rover and have insisted upon a meet & greet between our dog and the potential client pup. Our first boarding opportunity went dark on us and did not reply after we had set up two M&Gs that were canceled due to the client being out of town. She didn't reply to us so we declined the booking. The second was a last minute boarding request where the M&G and the drop off was the same day. We declined that one as well. The third and thus far final opportunity was a guy who was going out of town that day and needed to have someone take over boarding his pup after the first week when his friend would do it. His friend was also looking to to a M&G and drop off the same day, which we ultimately declined. Is this sort of last minute M&G, same-day drop off a common request? Are there a lot of super disorganized dog owners out there and we should be prepared for this sort of chaotic experience? We are hesitant to accept a booking where the owner is planning to drop off his pup the same day that they're meeting our dog for the first time. It seems very risky both for us and the client.