What can/do I say to this?

Started a new studio, just me. Renovations were done in September, so I opened, and have been building clientele, posting on local community FB groups for marketing, since that what the community uses. Been incredible so far. Made a post in them Wednesday night, and increased my following by 50% since then. Yay.

But this guy. Isn't a follower, but stalked the page all the way back to its inception and a post I made showing "your therapist" so people know who I am, but also the very scared gentle doggo they may see. His sole interaction with my entire business page is liking this one photo and this rather tame but inappropriate comment. Like, why do people think it's okay to interact with BUSINESSES like this?

I want to point out that this is a business, and this is inappropriate, but also don't want to come off too aggressive etc. Do I bother? Do I block him? Can't say I'd necessarily want him as a client based on this interaction alone; there's so many other photos and posts he could interact with, and be more appropriate with. Just gives me the heebies.

Photos in the comments. Advice wanted, but be gentle, first time going out on my own, and doing the customer facing on my own. I tend to be incredibly blunt with my communication, and in trying to be nicer am often interpreted as passive aggressive, so I overthink what I say, hard. Thanks, guys.