R - “I’m so tired. Will my body ever get used to not having caffeine?”
D - “It will. The wonderful about our bodies is they get used to anything you put them through. Abuse or otherwise.”
R - “What if I drink a lethal dose of poison. Will my body get used to that?”
T - “Small increments, and you should be ok.”
D - “How do you think Westley trained himself to become immune to iocaine powder*? He spent years on that.”
R - “I said a lethal dose. Not starting with a small dose and working your way up to immunity.”
T - “Not sure. Try it and let me know so I will be able to give an educated answer in the future.”

*+1 to D for the The Princess Bride reference.