"Eating out of my hand"

Walking around Stirling University Airthrey loch on a Sunday afternoon has a whiff of a Victorian promenade with people meeting friends and acquaintances, all out for an afternoon stroll in beautiful parkland surroundings.
 
In the course of this we meet Emma, who works at the uni. She feeds the swans every day. Is she not afraid of getting bitten? She shakes her head. 
I tell her I was once.
 
“Nonsense,” says a passing acquaintance, an expert on all things swannery.
“Just a love-bite.”
Er…. I am not taking any chances.