We would tell people to sit down and don't think about it, which worked at times, but once you hit the cabin and laid down, that could be your detriment, and a miserable trip.
I've seen people recover after letting the genie out of the bottle and ended up having a great day. Sometimes, it's only that initial feeling and reaction that get's them, then everything is fine.
On occasion, I would let someone feeling a tad under the weather sit by me. Show and explain the electronics and what is really going on here with the hardware out and the conditions. Take their mind off of it, because it's in your mind.
I've tossed a new wet vac in the dumpster. Didn't even want to open that one up
