Toblerone sues British vegan chocolate brand over shape

• Mondelēz, owner of Toblerone, has filed a lawsuit against Catherine's Originals in London High Court.
• The lawsuit accuses Catherine's Originals of 'passing off' and trademark infringement.
• Catherine's Originals denies the claims and describes the lawsuit as 'frightening'.
• The case involves the alleged copying of Toblerone's distinctive chunky shape.
• The owner of Catherine's Originals is a small business in the UK.