If you intentionally Practice playing a guitar, you become a popular Guitarist.
If you intentionally Practice acting, you become a popular Actor.
Similarly, if you practice dishonesty, stealing, lying you’ll become dishonest, thief & a liar.
That’s what usually happens with most of the people. They think they’ll steal once, but the human behavioural trait makes them a serial thief thereby making their own lives miserable.
You become what you practice.
Do good to others & it will make you great. Do bad to others & it will ruin you. That’s how subconscious mind works.