. >> the same for sunil. >> i did not even see the box.lean it when we talked to ever saw the box. besides the arbitration notice on the box, lg says it puts notices two other places. one, taped inside the refrigerator. in another, in the owners manual. >> they put them into everything. >> reporter: anna hahn. >> professor of law at santa clara university. i've been teaching here for 35 years. >> reporter: professor hahn says these days you agree to mandatory arbitration all the time. click here, sign their, hahn says proper notice is key. both times must agree not to sue. arbitration notices printed on a box, steve taped inside a product or included in a manual that you don't see until after you buy gives shoppers sufficient notice. hahn noted parallels to a case in which samsung tried to force arbitration with a notice in a smart phone box. >> in that case, the court said exactly what you just asked, which is was there sufficient notice to the consumer about this clause? was there actual consent? if you don't know something, how would yo