I reckon what you have yet to experience is that you can potentially kill a patient every time you touch them. Doesn't matter if you're the world expert and follow the protocol exactly, the outcome can still be, as they say, adverse.
Case in point: I once had the pleasure of watching an anesthesiologist starting a spinal on an older lady. He put in the needle, and then pushed a tiny amount while watching her vitals. He did this because there is a small risk that the needle could be inside a vessel, in which case pushing a tiny bit would cause her heart rate to drop slightly but noticeably. Her heart rate was unchanged, so in his assessment the needle was in a satisfactory position.
At this point, had he been a cowboy with a premed looking over his shoulder, he might have given said premed the green light to push the rest of the drug. Had said premed done this, given the presence of a professional to help guide him/her and watch out for any potential concerns, he/she would have watched in abject horror as the patient slid off the gurney, crashed, and coded.
In summary, the people who let you intubate were idiots, and it's only a matter of time before you realize how completely stupid and reckless such an act truly is.