Sonic Drive-In v. Miller — Court ordered wrongful-death and survival claims to arbitration

Case
Sonic Drive-In, Keene, TX, LLC v. Leigh Anne Miller, Individually, and as Representative of the Estate of Matthew Davis
Court
Texas Tenth Court of Appeals
Judge
Chief Justice Johnson; Justice Smith; Justice Harris
Date Decided
September 17, 2026
Docket No.
10-24-00353-CV
Topics
Arbitration; Wrongful Death; Unconscionability; Waiver
Source
Read the full opinion

Background

Matthew Davis was working at a Sonic Drive-In in Keene, Texas, when his supervisor directed him to confront an intoxicated customer who was urinating in the restaurant’s back parking lot. The encounter escalated, and a twelve-year-old accompanying the customer shot Davis six times. Davis later died.

Davis’s mother, Leigh Anne Miller, individually and as representative of his estate, asserted wrongful-death and survival claims against Sonic and other defendants. She alleged that Sonic negligently directed Davis to confront the customer, allowed dangerous premises conditions, and negligently hired, trained, and supervised employees. Sonic moved to compel arbitration based on an agreement Davis electronically signed during onboarding. The district court denied the motion, and Sonic brought an interlocutory appeal.

The Court’s Holding

The Tenth Court of Appeals held that the arbitration agreement was enforceable. Although Davis had to accept arbitration before beginning work and lacked meaningful bargaining power, those circumstances did not establish procedural unconscionability. The onboarding documents expressly identified the mandatory, binding arbitration requirement, and no evidence showed that Sonic misled Davis, rushed him, or concealed the agreement’s legal effect.

The court also held that Miller’s status as a nonsignatory did not prevent arbitration because wrongful-death and survival claims are derivative of the decedent’s rights and therefore subject to Davis’s agreement. Sonic did not waive arbitration by waiting approximately nine months to file its motion because it asserted arbitration in its original answer, sought only limited initial discovery, and did not substantially invoke the judicial process inconsistently with arbitration. The court reversed the order denying arbitration and remanded for further proceedings consistent with its opinion.

Key Takeaways

  • An employer’s requirement that an at-will employee accept arbitration before beginning work does not, without more, establish procedural unconscionability.
  • Wrongful-death beneficiaries and estate representatives may be bound by a decedent’s arbitration agreement because their claims derive from the decedent’s rights.
  • A delay in moving to compel arbitration does not establish waiver when the defendant promptly invokes arbitration and engages only in limited litigation activity.

Why It Matters

The decision reinforces Texas’s strong presumption against waiver of arbitration and confirms that courts examine the totality of litigation conduct, not delay alone. It also illustrates how conspicuous onboarding disclosures can defeat claims that an employment arbitration provision was deceptively buried.

For wrongful-death and survival litigation, the ruling underscores that a decedent’s valid arbitration agreement can determine the forum even when the beneficiaries never signed it themselves.

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