propensity to steal; kleptomania
Refers to a habitual tendency or compulsion to steal, ranging from a bad habit to a clinical condition. Often used in psychological or criminological contexts.
He has been caught many times because of his propensity to steal.
Kleptomania is sometimes regarded as a psychological issue.
kleptomania
Compound of 盗 (steal) and 癖 (habit). The exact historical derivation is uncertain, but the word transparently means 'stealing habit'.