A convenience-store clerk is being held without bail for allegedly attacking a boy in Fort Pierce for not buying a yo-yo, police said.

Amar Shreiteh is charged with attempted murder and false imprisonment. Police said he was working at the store Monday morning when 14-year-old Jeremius Howard entered with his sister. As the girl browsed for snacks, Howard played with a yo-yo.

After she paid for the items, Howard put down the toy and tried to leave the store. Police said Shreiteh demanded the boy pay for the yo-yo, but Howard told him it was already opened and he didn't want it. Shreiteh then reportedly punched the boy.

Shreiteh pulled Howard behind the counter and stabbed him on the back of his arm with a butcher knife, police said.

Another clerk tried to stop Shreiteh and suffered a serious wound to his right forearm.

Howard was treated and released.