Sometimes you all are funny.
This happened a bit ago, but just remembered it now. Had someone wanting to come see some geckos, and I asked if they were ready to make an appointment. Their response:
Yes this Saturday mourning 9am if anything changes I will let you know
Which... if I was going to be home on that Saturday, and had that time open, it would have been fine. But... I was leaving that Thursday to go out of town, and coming back the following Tuesday... so... I would not be around Saturday.
All I ask... is that you all think about what you're saying, and maybe ask, "would this work?" rather than just pick a day and time, and assume it's fine. While some days I do only have one appointment, others I have people all day. When you pick a random day and appointment time out of the air... you have no idea what I might be doing that day, what other appointments I might have, if I even might be in town... and so on.
For this person, I emailed back and explained, I would not be in town, specified what days I would be gone, and asked when else they could come. It's not a big deal, but to me, it's courtesy to ask, "does this work for you?" rather than just specify that I'll be somewhere at a certain time. That is all.