Mom's, Dad's and League
My mother just called me to hang some clothes 9 minutes into my ranked match. Then I had to open the gate for my dad 3 minutes later.
League is just a game so I never get upset about being interrupted and I try really hard to play when there's nothing to do but all the same life happens in random ways. I tried to explain to my mom about how me leaving in the middle of a match that can't be paused, can be really upsetting to 4 or even 9 people. So if possible if she could wait until the match is over for me to do the thing she asked. Of course league is still a game and games are just things, so of course if she wants it done now I will leave my ranked match but all the same it can be a little frustrating losing a match based solely because you afk'd.
So I suggest that you too try to respectfully explain to your parents how league works, how it can't be paused and why it's not very kind for you to afk during a match and how it affects others negatively. =) But always remember that it's just a game and you parents are top priority.