When any one of you urinates, he should not hold his penis in his right hand or clean it with his right hand; and (when drinking), he should not breathe into the vessel.

What does this mean by "breathing into the vessel"?

"It is also good manners according to Shareeah to recite certain adhkaar (supplications) when entering or leaving the toilet, which are quite appropriate to the situation and place. Our Prophet (peace and blessings of Allaah be upon him) taught us that when entering the toilet, we should say: Allaahumma innee aoodhi bika min al-khubthi wal-khabaaith (O Allah, I seek refuge with You from male and female devils). When leaving the toilet, he should say: Ghufraanak (I seek Your forgiveness)." -and- "He should not use bones or dung to clean himself or wipe away the impurity, rather, he should use tissue, stones, and the like... When he had finished, I came back and asked him, What is wrong with bones and dung? He said: They are the food of the jinn." -and- "The Messenger of Allaah (peace and blessings of Allaah be upon him) said to him: If you see me in this state, do not greet me, because if you do, I will not respond. (Reported by Ibn Maajah, 346; see also Saheeh al-Jaami, 575). The majority of scholars say that it is makrooh (disliked) to speak in the restroom unnecessarily."

Is this what you were talking about with angels hanging around the toilets?