To Copy a Videotape
As a matter of caution, one should not copy a videotape without the permission of its owners. However, if a person has already done so without the permission of the owner of the tape, it is sufficient to wipe the recorded material off the tape.

To Use the Property of One's Adult Son
A father has no right of disposal over the property of his adult son unless it is done with the approval of his son. If he acts contrary to his son’s wish, he would have committed a ḥarām act. He should, therefore, compensate his son, excluding exceptional circumstances.

To Give all One's Property to One Child
If it results in creating discord and strife between the offspring, it is not permissible for a person to give all his property to one of his sons to the exclusion of the others.

To Obey One's Parents
It is not obligatory to obey one's parents. However, to annoy/hurt them is impermissible unless it is caused by performing an obligatory act or avoiding a ḥarām one.

To Care for a Sick Father/Mother
Unless he/she can afford employing a nurse, the provision of care for a sick father/mother rests equally with all those, among his children, who can afford it. 

To Disciplin a Child
While disciplining a child by his/her father or a teacher authorized by him, they should avoid things which cause paying blood money, like if his/her body becomes black, bruise or red.

Compensating for Illegal Use of Others' Property
If one is obliged to pay a compensating for illegal use of others' property, it does not suffice to spend it on common good; rather, it should be given to the owner, or his heirs — in case he has passed away. However, it is not necessary to tell them the truth, or to give it to them in person. It suffices to give it to them as a gift, a festive present, or the like even through a third party. If they are not accessible, one may spend it on charity on their behalf taking into account the decrease in the purchasing power of the money.

Wastefulness in Electric Power Consumption
There is no doubt that consumption beyond one’s requirements is regarded as wastefulness, including the use of electric power and the light.

Killing Harmful Insects and Animals
There is no objection to killing insects and animals which are harmful or pollut the environment.