Having read a sermon by Saint Alphonsus recently that talks about death I want to share what stuck with me from that:

If we are in a habit of having bad thoughts Hell is a very real possibility for us.  Even if we go to daily Mass and weekly Confession and pray the 15 decade Rosary every day.  

By bad thoughts I don't just mean unchaste thoughts which fall into the category of the reason most souls go to Hell but thoughts against our fellow bloggers, thinking badly about them, wishing ill against them, same with anyone else, a mother-in-law, a novus ordo family member, people that lie, and betray you.  

Saint Alphonsus relates a true story where a man on his death bed gave a good Confession and was truly sorry for his sins and in a state of sanctifying grace afterwards.  The Devil tempted him to, if he should recover, to show appreciation to a female who liked and not be ungrateful to her by ignoring her.  He resisted the temptation the first time, and the second, but caved in the third time and went to Hell.  

This story is in his Sermons book for the Eighteenth Sunday after Pentecost.

Drive out bad thoughts as soon as they enter.  Especially if they be unchaste.  But also watch to make sure that you wish no one ill or rejoice in their bad fortunes.