The former model, who was awarded £24.3 million in her divorce settlement,
reportedly tipped a glass of water over Fiona Shackleton's head at London's
Royal Courts of Justice.
Shackleton, who arrived at the hearing with perfectly styled hair, left
court looking wet and bedraggled.
A source said: "Heather tipped water over her head. It was cool calm and
collected. It trickled down Fiona's head. She waited until the hearing was
over. Fiona was soaking. Everyone was stunned - that kind of behavior is
just not acceptable."
Outside the court, Heather unleashed a furious verbal attack on Shackleton -
who represented Prince Charles in his divorce from the late Princess Diana -
accusing her of underhand tactics.
The 40-year-old fumed: "Fiona Shackleton has very sadly handled this case in
the worst manner you can ever, ever imagine. She has called me many, many,
many names before even meeting me when I was in a wheelchair."