Tell him in any format you like, that you'd prefer not to have contact with him any further.
I can see how most people would find his behavior the typical "harmless nosy old man" but honestly, this sounds a little more then that. He shouldn't be harassing you, or coming to your workplace. He should not be leaving such irritating messages on your phone. He should absolutely not be making comments like "cutie pie" and "beautiful". He's a complete stranger, not your doting grandpa.
So yes, tell him that you cannot take his proposed work, and that you'd like him to stop contacting you. Sometimes people can become fixated like he seems to be, and the further they're strung along, the harder it will be to distance yourself from him. So be upfront.
no subject
I can see how most people would find his behavior the typical "harmless nosy old man" but honestly, this sounds a little more then that. He shouldn't be harassing you, or coming to your workplace. He should not be leaving such irritating messages on your phone. He should absolutely not be making comments like "cutie pie" and "beautiful". He's a complete stranger, not your doting grandpa.
So yes, tell him that you cannot take his proposed work, and that you'd like him to stop contacting you. Sometimes people can become fixated like he seems to be, and the further they're strung along, the harder it will be to distance yourself from him. So be upfront.