An angry letter was left on an ambulance which was treating a 'time critical' patient.
Tasha Starkey, who works for West Midlands Ambulance Service, tweeted a picture of the letter.
The enraged paramedic said they were treating a 'time critical' patient.
In a statement, paramedics said: "Sometimes we just don't know what to say.
"This was the note left on an ambulance today.
"At the time, the crew were helping a man who was extremely unwell after vomiting blood.
"They took him on blue lights to hospital where he was in a critical condition."
Following a wave of support on social media, the ambulance service thanked people for their backing.
The paramedics said: "We still can't believe it, and it appears you can't either.
"Leaves us feeling really rather #sad - thanks again for all your support."