To not feel joyful upon seeing a Vaisnava is an offense arising from a heart immersed in envious feelings.
When someone accidentally deviates due to overwhelming circumstances, the deviation is considered to be a sin. However, if the person continues acting defiantly even after recognizing their improper behavior, it then turns into an offense.
A devotee can forgive any offence – but Krishna does not tolerate any offence.
Offenses against vaishnavas and negligence at following regulative principles are the most dangerous obstacles in Bhakti.
Before we commit offences against devotees, there comes a stage in which we feel ourselves to be better than other devotees.
Offences take away your service and in the worst, the propensity to serve.