OP updated this to specify that they saw cockroaches and immediately after saw the ads without searching at all.<p>The coincidence is certainly odd, but not entirely out of the realm of possibility, especially if this isn&#x27;t the first time they&#x27;ve had cockroaches (ie. they might be in a demographic&#x2F;audience segment likely to have these issues and be frequently targeted).<p>I would also add that FBX partners can leverage a massive amount of 3rd party data, such as search retargeting vendors that can serve ads as quickly as seconds after you&#x27;ve searched for something on one of the data sources they partner with (engines, toolbars, etc.).