This depends upon the direction from which the negativity occurs.
1. From Family - just say that it is mostly free to do in your spare time.
2. From Anyone else - thank them for their time and ask someone else. Just move-on. You will receive about 3 that sign-on to SFI in about every 100 people you ask and of those only 1 out of 100 - 200 will be active.
