I had this happen to me when the poker planning widget we were using was offline (can't complain about free services). I googled around then found something, gave it a go on my system, and then gave it to my team. When someone started sharing their screen, I was embarrassed by the amount of highly personal ads that I saw (fat loss, vacation things). I saw none of that. I felt terrible for suggesting it. No one else seemed to notice or care, but - it's amazing.