I've had no such ads that I noticed until you pointed that out. Until then, I'd have agreed that what you browse typically is what you see, but I have too many safeguards on this particular computer and the ability to see every single thing ever viewed, yet I saw that same ad when I clicked on your thread.
That really surprised me.
I put on ad-blocker and now it's all good.
The internet is something that is tough to control. When we see ads like that, we need to report them to the owner. He can't see what is going to go up and there's no way to have complete control, but from what I've seen, he's always found a way to take care of it once it is brought to his attention.
That's part of using the internet. It's like watching television...you don't know what company is suddenly going to decide to throw an inappropriate ad out there.
Be cautious, guard your heart no matter the what or where. I'm glad I'm not a guy, that has to be tough to deal with for a lot of guys to have that in your face everywhere. When it comes to that type of stuff, this world definitely makes pure minds tougher on guys than girls!