This appeared in my front yard yesterday morning. He (i think it's a he, my deer IQ is low) likes roses.
I have this reflex with Em that whenever she and i are walking and there are cars around i will stick my arm out in front of her to protect her from coming near any car. She was fine with this as a small child as she paid NO ATTENTION WHATSOEVER to cars, that was my job.
Now that she is 16, i still do it. She complained once, giving me the standard "i'm not a child anymore" line. I explained to her that i couldn't help it, that as a mom, it was just a reflex to keep her safe. She accepted this with more grace than i would have managed at her age with my mother.
Last week i was out walking around with a person i hardly know, and at the crosswalk i automatically stuck my arm in front of him to prevent him from stepping into the street.
"Oooh, sorry," i told him, grinning sheepishly, "it's a mom reflex."
Good thing he thought it was funny.