I teach self defense / awareness (occupational safety of sorts) to home health nurses and DSS workers. My main two focuses are mindset and targeting (the eyes, the throat and the groin). How they do that has countless techniques i.e. Whatever works at the time just drive it in hard, deep and multiple times on the attacker. I also teach that size does matter so hurt him fast, hurt him bad and get out before he can take advantage of the size difference.
As for being unarmed, I go over using common every day items at hand as weapons. I do not teach BS about using rolled up magazines or car keys as weapons. When I say weapon I mean a deadly implement in response to a deadly attack.
And I taught using a "focking pen-sill" waaaaay before "John Wick" ever came out. I've been using this clip in my classes for years (jump to 1:35) NSFW language and the accurate depiction of the elusive and mythical late, great strangelittleman in action. Seriously, Guy Ritchie had to have met SLM during his time stationed in England (St. Mawgan) when he was in the Marines. The dude with the pencil is SLM to a tee.