You might accidentally break someone’s essential equipment. It is not deliberate, but imagine if I told you that object held sentimental value…. perhaps the only remaining piece from a loved one, such as a mother or father. It becomes a painful loss all over again. They only meant to look at it and did not know it was sentimental, however, the act remains accidental.
In this hypothetical case, their aim was simply to glance at it after it caught their eye, unaware it was the only reminder of a deceased loved one.
Even the most innocent intentions cannot undo the actual damage when outcomes differ from plans. Sometimes the result can harm someone’s life. The person affected still carries pain, and no amount of good intent can erase it. This is one extreme example, yet many other contexts apply.