[TowerTalk] How far from the house?

[Alan NV8A (ex. AB2OS)]

My attention has just been drawn to the articles by Ron Block KB2UYT in 
QST June - August 2002 in which he says that the tower should be at 
least 25ft from the house to reduce magnetic coupling between the tower 
and the house wiring in the case of a lightning strike.

Is this good advice? Would it be disastrous to locate the tower only, 
say, 10ft from the house?

Alan NV8A