Bank wants to know why I want to cash out refinance

[Sewi Wawa]

Hi all! I am trying to do a cash-out refinance on my house that is completely paid off. The loan is in process, but in the mean time, my bank sent me an email asking me what I am planning to do with the money. I don't see why this is any of their business. The truth is that all of my assets are tied up in this house, and I'd like them to be liquid.

 I will be doing several things with that money including possibly investing into more real estate. Would they be scared that by investing into real estate, that I wouldn't be able to make my payments to them? Thanks for your help guys!