A man threw live scorpions at hospital receptionists after becoming annoyed at the waiting time.
CCTV footage shows how he empties the stinging creatures on the front desk.
The staff members flinch and lift their feet off the ground as the creepy-crawlies scuttle around them.
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As one tries to flatten scorpions with a flip-flop, the others quickly vacate the cramped space to avoid being stung.
Nurse Eva Aparecida de Oliveira Gomes recalled: “It all happened very quickly.
“He came to us, claimed he’d been stung by a scorpion, and then threw the creatures at them.
“He got agitated, insisting we needed to speed up the service.
“Afterwards, we ushered him inside, provided treatment, put him under observation, and requested he stay at the facility for six hours.
“However, he only stayed for two before fleeing.”
The 48-year-old man was given scorpion anti-venom serum for a sting on his finger, as reported on Need To Know.
Receptionist Erica Simone Inácio de Souza told local media: “He arrived at the reception, and when I asked for his date of birth, he immediately shouted it at me, sounding agitated.
“Then, he grabbed the box of scorpions and threw it at us.
“We were terrified at the time.
“I didn’t understand why he acted that way.
“I was left traumatised, scared. I’ve never experienced anything like it before.”
Eva added: “It was a big scare for everyone.
“He was finding it all amusing.
“We were angry, frightened, and left speechless at the time.”
Luckily, none of the 10 scorpions released by the 48-year-old man from the box he was carrying stung anyone.
Sanitation workers were called in to clean the scene in Santo Antônio do Aracanguá, Brazil.
The police are investigating the case.
The man, according to local media, could face three months to a year in prison for putting those present at risk.