Paramedics who were saving a person suffering a cardiac arrest returned to find an abusive note on the ambulance window.
British paramedic Katie Tudor posted the upsetting note on social media following the incident, writing: "So upset to be sent this by one of our crews this morning! Along with this note left on their ambulance, they received a load of verbal abuse!"
When the West Midlands ambulance staff returned to the vehicle after helping rescue a patient they were confronted by an angry note.
It read: "If this van is for anyone but number 14 then you have no right to be parked here.
"I couldn' give a s**t if the whole street collapsed. Now move your van from outside my house."
Police arrested the 26-year-old woman who allegedly wrote the foul note for public order offences.
Paramedic operational manager Mike Duggan also shared the image of the note online and said: "People seem to have not respect for the work we're doing or the fact we're helping someone. We don't block roads for the sake of it."
According to Tudor, ambulance staff weren't blocking the road, instead they were "in a parking space".
She said the woman was just "obviously annoyed" that "an ambo was outside their property".
Duggan would now like to see those who verbally abuse emergency workers dealt with more "robustly".
"What is it going to take?" he told BBC News. "Is one of us going to have to die before they take it seriously?"
A similar incident happened last November when a heart attack patient died after a nasty note was left on the window of the attending ambulance in Birmingham in the UK.
"You may be saving lives, but don't park your van in a stupid place and block my drive," the man wrote on the note as paramedics worked to save someone's life inside the house.