Fits look worse than they are for the dog. I used to simply chuck a towel over my dog (they can be incontinent) , shove furniture away if necessary and leave him alone.
When he came round it would take up to half an hour before he oriented himself so it is important that he is left to rest afterwards. My dog didn`t recognise me for a while and I would certainly have been bitten if I`d tried to comfort him.
My dog only had occasional fits so there was no need for medication. He lived a long and happy life.

I think everyone probably feels the same about leaving their dog in case they have a fit, I know I did. If I did have to go out I would be rushing the whole time to get back home. But once he's stabilised, life should go on as normal, quite often, they may only have a fit once or twice a year once the medication is right.

I'm so sorry for both you and Indie. Especially you a you will be suffering far more than him as you are naturally worried sick and traumatised seeing your beautiful boy in such a state. One thing I suggest you do is make a not of the date, time and duration of the actual seizure. It seems like a lifetime but usually is only 30 seconds to 2 minutes. It will be important for the future and handy for the vet to have.

The aggression in the post ictal stage of a seizure is pretty common and no reflection on Indie's true temperament. He's so bewildered at what's happening to him right now. One of my previous neighbours was epileptic and he said he had no awareness of actually being in the seizure, just coming round afterwards and feeling dazed for a while after. So that horrible convulsing you see, the dog is mercifully not conscious at the time and it is far more traumatic to watch than have.

Luckily, your kids are teenagers so you can tell them if Indie has a seizure and you're not at home just to stay calm and leave him until he's come out of it. The best thing they can do is draw the curtains of the room he's in, make sure he has a full water bowl and let him have some peace and quiet. Your first reaction is to want to comfort them by holding them, but that's the worst thing you can do. When he is ready and feeling more himself, he will come to you for reassurance.