Possible Clues:

• Accustomed, in the habit of doing
• Familiar with being roughly ousted
• Was in the habit
• Familiar practice at party around square
• Did once
• Gotye "Somebody That I ___ Know"
• Comfortable with 'Our Party', Miliband's almost premier
• Did, at some point
• Unsurprised by
• Black Keys "Things Ain't Like They ___ Be"