Not you, of course. “Other” people.
Aston-Martin
Left — fake. See: "PRE-OWED" in copy.
Not only is it fake, it's unoriginal.
Right — unfortunately, that's a real ad, via a BMW dealership in Greece.
Nike "My Butt Is Big"
The ad at left, which first surfaced in 2010, is a fake.
Not that you would have known that from the media coverage.
The Atlantic thought it was real.
Salon thought it was real.
Dead giveaway?
"Embassador." A real Nike ad would never have that glaring of a spelling mistake.
The 2005 ad at right, which features the exact same copy, is real.
See the difference?
Heineken "Fuck It"
At the time the video was release (created by ad students), Heineken publicly said they wouldn't seek legal action because "they didn't want to draw attention to it."
LAUGH OUT LOUD.
Smirnoff "Be Whoever You Want"
You can bet Smirnoff also is "not seeking legal action" to have this ad removed from the internet.