Eddie Jones has primed England for a Welsh dirty-tricks campaign in the hours leading up to Saturday's Six Nations meeting.
Jones takes his Grand Slam holders and 14-match winning run as head coach to Cardiff expecting a rough ride on and off the pitch.
The Australian has already employed his own pre-match tactics, waiting until the 48-hour deadline to tell Wales he wants the Principality Stadium roof to remain open.
Jones has told his players to be ready for all kinds of distractions once they cross the River Severn on Friday.
"You go to the hotel and unless you take steps, players get rung incessantly through the night. Those things happen," he said. "You go to the ground and the traffic controller drives slower than the traffic's going to make sure you're late.
"You get to the ground and there's something wrong with your dressing room - there's lights off or the heater's switched off.
"You can't check because they traditionally tell you one thing and something else happens. It happens regularly in South Africa and it happens regularly in Wales.
"Those things happen regularly in those sorts of countries, so the challenge for a team to play away is to be better than that. They're things you can't control.
"Once we go down the M4 and across the Severn River, we don't control anything. The only thing we control is our own mental state and the way we play the game.
"That's how good sides are and the way we want to be. This week's been a great learning experience for the team in understanding that. Whatever we do on Saturday, we'll be better for it."
All 10 games of the British and Irish Lions tour to New Zealand will be shown live on Sky Sports, starting June 3 2017.