Nephrotic syndrome is often caused by damage to small blood vessels in the kidneys that filter waste and excess water from the blood so <span>Diuretic, ACE inhibitor, Antihypertensive drug, Statin, Steroid, and Immunosuppressive drug can hel</span>
The most clear way would be - "Sam, I don't think stealing things from a shop is ok, it's illegal and you're stealing away the hard work of some people without paying for it".
That should send Sam a clear message that will explain him why stealing is wrong and why he shouldn't be tealing in the first place.