There was a healthy competition between Nilsson and tenor Franco Corelli as to who could hold the high C the longest in Act II of "Turandot." In one tour performance, after she outlasted him on the high C, he stormed off to Rudolf Bing during the next intermission, saying that he was not going to continue the performance. Bing, who knew how to handle Corelli's tantrums, suggested that he retaliate by biting Nilsson on the neck when Calaf kisses Turandot in Act III. Corelli didn't bite her but he was so delighted with the idea that he told her about Bing's suggestion. She then cabled Bing, informing him she had to cancel the next two performances because she had contracted rabies.