impinging on the truth-seeking function of the court....’” (Jogani v. Jogani (2006) 141 Cal.App.4th 158, 175 [45 Cal.Rptr.3d 792], quoting Teledyne Industries, Inc. v. N.L.R.B. (6th Cir. 1990) 911 F.2d 1214, 1218.) “Because of its harsh consequences, the doctrine should be applied with caution and limited to egregious circumstances.” (Gottlieb v. Kest (2006) 141 Cal.App.4th 110, 132 [46 Cal.Rptr.3d 7].)
“The doctrine applies when ‘(1) the same party has taken two positions; (2) the positions were taken in judicial or quasi-judicial administrative proceedings; (3) the party was successful in asserting the first position (i.e., the tribunal adopted the position or accepted it as true); (4) the two positions are totally inconsistent; and (5) the first position was not taken as a result of ignorance, fraud, or mistake.’ ” (Aguilar v. Lerner (2004) 32 Cal.4th 974, 986-987 [12 Cal.Rptr.3d 287, 88 R3d 24], quoting Jackson v. County of Los Angeles (1997) 60 Cal.App.4th 171, 183 [70 Cal.Rptr.2d 96].)
Appellants took inconsistent positions in Bucur II and this case. They agreed to arbitrate their claims against Ahmad and FedEx in Bucur II but later refiled virtually the same case for litigation in this case. Both cases made essentially the same allegations against Ahmad, i.e., that the defendants wrongfully terminated the line-haul contracts, forced Appellants to sell to Wasarhelyi and acted in concert with Wasarhelyi to divert revenue from Appellants’ line-haul contracts.
Once a case is in arbitration, litigation of a second case arising out of the same transactional nucleus of facts cannot be permitted. Subject to narrow exceptions not applicable here, once a dispute has been sent to arbitration, the courts may not act on that dispute absent an agreement to withdraw the controversy from arbitration. (SWAB Financial, LLC v. ETrade Securities, LLC (2007) 150 Cal.App.4th 1181, 1200 [58 Cal.Rptr.3d 904] (SWAB Financial); McRae v. Superior Court (1963) 221 Cal.App.2d 166, 171 [34 Cal.Rptr. 346].) In such cases, the arbitrator, not the court, must resolve all questions relating to the controversy. (SWAB Financial, supra, at p. 1200.) This is particularly true when, as here, the parties stipulated to arbitration. (Severtson v. Williams Construction Co. (1985) 173 Cal.App.3d 86, 90-91 [220 Cal.Rptr. 400].) Sending a case to arbitration suspends all judicial proceedings until the completion of arbitration, and trial courts lack any authority to institute proceedings which interfere with the completion of the arbitration process. (McRae, supra,* at p. 171.)
Finally Appellants made no showing that their stipulation to arbitrate, with the knowledge and consent of their former attorney, was the result of fraud, ignorance, or mistake.