Good movie but misses a very important point

Rating: 7/10 (1 April 2017)

Well, I liked it so much, the character shift of Rose Armitage is very tough, but I just have one question that really pisses me off:
HOW ON EARTH WAS CHRIS WASHINGTON ABLE TO PUT A COTTON PARTS FORM THE CHAIR INTO HIS EARS WHILE HE WAS COMPLETELY TIED TO THE CHAIR??!!
Really need to know, It saved his life and destroyed them!