I've done both. One was in a hotel arcade, the flipper was so weak I couldn't get the ball halfway up the ramp to the spinning disk on POTC. I called the number to report it and just played the Nascar instead, no biggie left it alone (a tech actually showed up and was fixing it the day I was leaving). The second time was playing a AMH. The ball disappeared in the pops and I couldn't figure out why, until I saw the huge "scoop" was actually where a pop bumper fell through the playfield and could see the green circuit board leds down below. Turned that sucker off and told the bartender. It was a pinball bar and knew the owner though.