Back in 1980’s when I entered EMS, electronics weren’t small or light.  The pagers back then would pull your pants down.  Well one paramedic asked for a replacement for his since the one he had didn’t work anymore and he didn’t know why.  Well we would get those pagers repaired since they were so expensive and definitely not disposable.  When the pager tech (that use to be a job) opened said pager to see what might be wrong with it, water came out.  The truth then came out, what actually happened was the pager had slide off his belt and into the toilet and they were desperately hoping no one figured it out.  After all, who wants to admit they let that happen.