James Rossiter hit the jack-man during a practice pitstop, sending him "high" into the air.
First time that the Scuderia Ferrari works team has been on top of the timesheets on the Jerez de la Frontera circuit.
Rossiter is getting his chance to test the new VJM06 not because he is a candidate to race in 2013.
Force India team driver Paul di Resta and third driver James Rossiter split the testing duties on the second day in Jerez.
James Rossiter and Paul Di Resta shared the testing duties on Thursday.