A neophyte should always be careful. One should not discuss about such great devotees' apparent fall-down. Just like one should not discuss about the sun who evaporates urine from the earth; it is possible for the sun to do it, and still remain the sun, but for ordinary man if he lives in a filthy place he will be infected. So Lord Siva or Lord Brahma, they are highly elevated devotees, and we should not try to criticize about their behavior even though it appears against the rules. These things are very nicely explained in Srimad-Bhagavatam in course of discussion between Maharaja Pariksit and Sukadeva Goswami, in the 10th canto.
Letter to Himavati, 23 March, 1969