[dessant]

If you're adventurous you could log into Google, PayPal and social media sites. Once you get past captcha challenges and manage to access your account, they may helpfully lock your account and never let you use it again, regardless of how much proof you provide for the ownership of the account to their support staff.

[blowski]

I see! That's something I've never done, I've mostly been using it to look at specific sites where I already knew the URL.