Actually cell phones did get much safer over time. The transmitted frequencies changed to safer frequencies because they are less absorbed by the human body and the transmit powers have decreased over the years.

Dont believe me? Trust your own experience. Everyone has noticed that cell phones no longer make your speakers buzz when they are about to ring. I've still got the same speakers on my desk, only the phone changed.

Just stop being dishonest and people will stop showing up to correct you.