LPT: No temporary repairs for friends, they become permanent, and it becomes your job to duct tape it over and over again.

I've done this many MANY times. Using what's on hand, or what can be picked up for a few dollars to do A ‘temporary’ repair, Tell The friend or family member that it's working for now and they need to get xyz in the future (That being a new part or having a professional do something or anything else). I can tell you 99.999% of the time they are NEVER going to actually fix the problem properly if the temporary solution works.

And when the temporary solution fails more often than not they're going to be frustrated at you instead of grateful for the effort you put in to give them extra time to fix the problem. And you've adopted the permanent responsibility of duct taping it together for the rest of time.