Starbucks will be installing “panic buttons” at a number of locations to help staff non-confrontationally kick out customers who overstay their welcome or others who are simply loitering, according to a report.

Starbucks is to install panic buttons for staff as it cracks down on customers who sit in its shops or try to use its lavatories without buying anything.

Changes arrive at Starbucks US. cafés on Monday, including a new code of conduct, free refills and the return of condiment bars. Why it matters: The coffee giant has been trying to reverse a decline in foot traffic and go back to its roots under a plan Starbucks CEO Brian Niccol outlined in September.

Starbucks customers in the U.S. and Canada will notice some changes when they visit a Starbucks location on Monday, including the re-introduction of condiment bars.

Starbucks has reported better-than-expected sales in its fiscal first quarter as some of its turnaround efforts start to take hold.

Starbucks is set to report its fourth straight quarter of comparable sales decline on Tuesday, in what could be another blow to investors waiting for new chief Brian Niccol's efforts to revive demand at the struggling coffee chain.