One time you "need" (feeling pressure from somewhere) to get something done and you reach for the tool at hand, it's not the right tool but it's workable. Then later you experience the same thing and think, "Oh yeah, that worked last time I can just do it again." Repeat a few more times and it becomes the tool you reach for instead of your backup when you have nothing else but "need" to get the work done now. Its unsuitability becomes apparent when you injure yourself or cause damage to the items you're working on because it was never the right tool, you were just careful in how you used it the first few times and got too comfortable with it as time went on.