Quite a funny story to tell from this afternoon.
Having received my ER4S back from a long loan period I'd placed some new foam tips on and of course wanting to enjoy them had been listening from Tralucents DacAmp One (which sounds amazing btw). There I was happily listening away to Andrea Bocelli, browsing Head-fi without a care in the world. Though on the outside not to far away my flatmate had arrived home to a locked door knocking and knocking to get inside, he started kicking the door which of course got him no-where.
After that failed he went out the front and started screaming on the front lawn to let him in. Obviously with ER4S deeply in my ears and level of isolation I couldn't hear a damn thing. He was locked outside for a good 45 minutes before I finally took them off and discovered him absolutely furious! it was quite a strange sensation seeing him so infuriated when I'd been switched off the whole time.
Took him a good hour or two to get over it too.
The pain of the double-edged sword. The amazing isolation is what allows us to hear all the nuances of the music. But I've been away from home to take care of ailing parents, and realized that while enjoying music late at night to finally have some 'me time,' I might not hear a scream for help from across the house! Made we wonder if I'd hear a smoke detector go off either!! I'm a bit paranoid/pessimistic by nature, so it's something I'm working to get over so I can still enjoy these.