It's common, when counting "days without an accident" and handing out awards and bonuses, to only reset the count for accidents of a certain severity.
After all, if you get a minor injury and you know getting treatment will cost your colleagues a $200 bonus, you might keep quiet about it and tough it out to the end of your shift.
To achieve a good culture of safety, you need to make the rewards for safety strong enough to resist the rewards for cutting corners - but you also need to make sure a guy can get a band-aid from the first aid kit or tell his boss about a trip hazard with no disincentives.
After all, if you get a minor injury and you know getting treatment will cost your colleagues a $200 bonus, you might keep quiet about it and tough it out to the end of your shift.
To achieve a good culture of safety, you need to make the rewards for safety strong enough to resist the rewards for cutting corners - but you also need to make sure a guy can get a band-aid from the first aid kit or tell his boss about a trip hazard with no disincentives.