I've tried this to no avail. Only change was "Sorry for interrupting you but..." or "Oh I thought this was a quick thing. I don't mean to interrupt you. Do you

I've tried this to no avail. Only change was "Sorry for interrupting you but..." or "Oh I thought this was a quick thing. I don't mean to interrupt you. Do you want me to come by again later?" Showing a breakdown of where my time had gone using Toggl (literally 50% to interruptions) did the trick.