Well to be fair... airlines do have their safety speech on every flight and go through how to use the seatbelt, O2 mask, life jacket, water landing, floatation devices etc. So it's not true that they don't go over the risks.
When it comes to anesthesia I try to keep it short and simple.
For routine cases:
Introduce myself.
Confirm patient and surgery/site.
When was the last time you ate?
Anesthesia before? Any issues?
Allergies?
Currently having CP/SOB? Different from usual? Activity status if applicable...
(Usually don't ask about medical history unless it's unclear)
(Usually don't ask about meds, since the nurses ask and document and the patients never seem to know anyways...)
Go back to the room, put on monitors (O2, HR, BP), give you some o2 to breath and then you'll go off to sleep.
Once asleep secure your airway(if GA). May wake up with sore throat, but otherwise out on wake up. Low risk of damage.
Give you medicine for nausea, which is biggest risk. Also pain medicine so you wake up comfy.
Someone will be in room montioring whole time. Don't expect serious complications, but that's why we're here to keep you safe. Have all emergency stuff available but don't expect to use it.
Afterwards take you to PACU. will continue to monitor and make sure recovering appropriately. Continue to give prn pain/nausea meds.
Here's anesthesia consent form. Goes over everything. Do you have any questions? (Then answer anything)
Obviously I adjust to specific populations. Hx of PONV. Peds. High risk. Difficult airways. But the above takes under 5 minutes.
I personally do not go into a frightening discussion of risks 15 minutes before a patient is heading into the operating room. And I believe analogously, while waiting to board, I've never heard a pilot or airline representative announce that our plane could go down in a ball of flames. People have different opinions on this--my personal approach is do the very best job I can to keep my patients safe, comfortable and anxiety-free, to speak to them so they know I care deeply about them, and to let the attorneys fight over the malpractice insurance money if ever it comes to that.