RequestAnimDict('creatures@rottweiler@in_vehicle@van')
while not HasAnimDictLoaded('creatures@rottweiler@in_vehicle@van') do Wait(0) end
TaskPlayAnim(PlayerPedId(), 'creatures@rottweiler@in_vehicle@van', 'bark', 8.0, -8.0, -1, 1, 0.0, false, false, false)