SB 6.1.22

bandy-akṣaiḥ kaitavaiś cauryair
 garhitāṁ vṛttim āsthitaḥ
bibhrat kuṭumbam aśucir
 yātayām āsa dehinaḥ
Synonyms: 
bandī-akṣaiḥ — by unnecessarily arresting someone; kaitavaiḥ — by cheating in gambling or throwing dice; cauryaiḥ — by committing theft; garhitām — condemned; vṛttim — professions; āsthitaḥ — who has undertaken (because of association with a prostitute); bibhrat — maintaining; kuṭumbam — his dependent wife and children; aśuciḥ — being most sinful; yātayām āsa — he gave trouble; dehinaḥ — to other living entities.
Translation: 
This fallen brāhmaṇa, Ajāmila, gave trouble to others by arresting them, by cheating them in gambling or by directly plundering them. This was the way he earned his livelihood and maintained his wife and children.
Purport: 

This verse indicates how degraded one becomes simply by indulging in illicit sex with a prostitute. Illicit sex is not possible with a chaste or aristocratic woman, but only with unchaste śūdras. The more society allows prostitution and illicit sex, the more impetus it gives to cheaters, thieves, plunderers, drunkards and gamblers. Therefore we first advise all the disciples in our Kṛṣṇa consciousness movement to avoid illicit sex, which is the beginning of all abominable life and which is followed by meat-eating, gambling and intoxication, one after another. Of course, restraint is very difficult, but it is quite possible if one fully surrenders to Kṛṣṇa, since all these abominable habits gradually become distasteful for a Kṛṣṇa conscious person. If illicit sex is allowed to increase in a society, however, the entire society will be condemned, for it will be full of rogues, thieves, cheaters and so forth.