Babysitting for a big baby

I definitely stared for a minute at the response from one 'Max' who replied to my babysitting ad. This was his response: I am baby Max and I'm a somewhat bigger baby of 30 years who really wants to be a baby with a kind babysitter or mom. I feel incredibly ashamed and don't know how it came about, but sometimes I just want to be a baby. Otherwise, I'm a completely normal guy, but I have this need. So I'd really like to be a baby with you and be treated like a 9-month-old baby. So giving a bottle, playing, feeding, reading, clean diaper (only pee), etc., everything the same as with a real baby, only I'm a bit bigger then. I'll hear if you're interested or want another photo. It would be about 2 days a week at €30 per hour!

What was this? That was my first reaction. Curious, I started talking to him and now I've been babysitting him for half a year! Who would sit for this? Send me a private message or text Max on 0657087176 because I can only do it once a week, so it would be great if he could also find another mom.