My strongest memory is lots of small children crying inconsolably because they were scared of the deer. Heard enough screams of 「こわい」 that I'll never forget it
It's a sight worth seeing, but the Nara deer are a menace. If they think you have senbei they will show no mercy.
I remember trying to get a selfie with the deer and my friends warning me I'd get my face bitten off getting so close lol...the deer didn't care. Most were just lazing about. I didn't feel in danger although I wouldn't do that again out of a general feeling of not bothering animals.