What are some dating red flags to look out for?

No pulse.

When it's very apparent she's deliberately scraping you with her teeth. https://www.youtube.com/watch?v=yRYFKcMa_Ek

Necrosis of the flesh.
Tendency to bite.
Inhibited walking.
Ravenous appetite for meat.

For a Man: any woman that brags about being ‘demanding,’ treats the waiter poorly or brings up her ex is a bad deal…drop her off at her place and block her calls.

For a Woman: any guy who is still talking about his High School athletic achievements 20 years later, refers to himself as an ‘alpha male’ or has a gym bag stuffed with zip ties and duct tape in the back seat…run away girl!!!

Mental health is number one.

A bulge in “her” pants.

Shows up to the date covered in blood.
Just broke out of jail.
Brings spouse with them on date.
Shows up naked.
Proposes on the first date.

Loudness

Talks about inane things mainly

Poor acknowledgement of your observations during 'conversation'

Half-baked political ideas

Poor taste in film, literature

Exorbitant interest in odd hobbies

Obsession with pets (forgivable, within reason)

Not attractive (that's a big one)