Can one know for a *fact * that what he or she is doing at that particular moment is temperate? This is in reference to all goods and activities that are objectively moral when used/done in moderation, i.e., food, drink, clothing, napping, watching t.v., etc. Are there any queues that one would experience that would indicate that the consumption has become sinful? Obviously, having a huge hangover resulting from partying the previous night would be an indicator that the person had had too many drinks and, thus, likely sinful. Please note that I am primarily interested in venial sin. I am interested in the subtle differences in sin verses moderation.
Thanks for your help.