Incredibly sensitive ring/silent switch on 6 Plus

[Jamesesesesess]

I'm already on my second 6 Plus due to button issues. My first one's down volume button would turn all the way down. If I tried turning it back up, it would just go right back down until the button was no longer activated. This caused me to miss my alarm two different mornings because the volume would turn all the way down. I set up an Express Replacement for that since I don't live near an Apple Store. Now, my replacement has a malfunctioning ring/silent switch. I always keep my phone on vibrate, but within the past two days it's been turning onto ring mode without me even moving the switch. If I'm putting it in or out of my pant pocket, setting it on a surface, etc., 50% of the time it will quickly shuffle between ring and silent mode numerous times. Now I know that Apple will give me another replacement because of this, but it can't be coincidental that both of my phones have had issues with the sound related buttons. Has anyone else experienced this?