Really, Really Bad Logos

Of all the Cardinal Sins of Logo Design, the seventh one is the heaviest: Use tone-deaf graphics or wording that subject the client to criticism or ridicule.
Here are some spectacular logo fails that businesses have actually paid to design and deploy:
This brand's message is loud and clear: their furniture is as American as… as it gets.
This is either a double entendre describing their motion picture inventory or an epic design fail.

Pro tips:
Fine-tuning individual spaces among the letters is called kerning.
Checking what you've just typed is called reading.

A conscientious designer ought to exert themselves to read the text they are typing in. …Especially in this case, when it's a mere two words - not three!

And yes, ALLCAPSANDNOSPACES can look trendy, but blindly following trends can backfire.

If they ever get an unhappy customer, at least they can always say they've given them a fair warning.
Is this pharmacy trying to tell us they carry prescription ED meds?
This logo is suggesting the clinic is looking to take care of more than your tooth ache.
These computer doctors may need to pay a real doctor a visit. To check their eyesight, of course (what did you think?), because that computer mouse doesn't look anything like the letter U. …Or like a computer mouse, for that matter.
I think I'll pass on the syrup.

If you were sceptical before that a bad logo could impact sales, what about now?

If your gadget's battery is running out of "JEWS", you can add [+] some, with this self-proclaimed iSMART device. Not so iSMART when it's upside down, apparently.
Ah, dance! Nothing quite like it to send the pulse racing and the imagination flying. But may be a bit premature for the age groups mentioned.

See how Karasev Studio went about creating better (much, much better) logos for its clients, and can help you, too.