Even in such a situation – and that's actually happened before – I'd still say no and buy the product from a competitor, even if that means paying twice as much.

Also, the last time a doctors without borders person showed up, I tried pressuring her into joining a local protest a few days later until she got uncomfortable and decided to leave.

All types of forceful advertising – be that online ads or door-to-door salesmen – are absolute bullshit and shouldn't exist in a civilized society.

My doorbell is labeled "no soliciting" for a reason.