How to cure a steamer?

[Frozen]

Those of you who play with me regularly know that bad beats never phase me, and I never go on tilt out of steam.

However, a family member of mine has this problem. I tried explaining to him that a poker player's job is only to get the best of it. Whether he wins or loses is irrelevant, and luck is of no significance in the long term. Can anyone direct me to helpful thread or articles which would help cure a steamer, and keep him level headed when the inevitable bad beats occur?