It's Hard Out There For a Russian Billionaire
If you're a Russian billionaire, isn't being afraid of having someone poison you a central part of your job description? How could you reasonably expect to go about your daily activities without having someone test your food in front of you and handle your mail and keep you away from beady-eyed men? Wouldn't that be exactly how you would expect to be murdered?
Any Russian billionaire worth his salt knows that being poisoned on a regular basis is probably how things are going to be until you can safely relocate yourself to practically no where on the face of the Earth.