The reason Salazar is so worried about sabotage is that his boys are already set to maximum levels; just below the testing thresholds, or testing limits. That limit is somewhere between 4-6 squirts of naughty cream. There is no way a saboteur could apply that much with a quick shoulder rub. But, one extra squirt on top of Salazar's maximum would be enough for Salazar to cry: "sabotage". Salazar knows that just-one-more would be enough for him to get beaten at his own game.