I work in a library in Dublin, Ireland.
Literally just this morning I had a woman walk in the door on a speakerphone call.
She walked right up to the desk and continued on her call.
Eventually a queue started to form, and I called the man behind her forward.
Without ending her call she screamed that she was next.
Everyone ignored her outburst, except for one man who pointed her to a door and said "toddlers' library is that way love".