From the Philadelphia Gazette, 14 May 1910:
The London National Register contained the following singular occurence;
A rat lately visited a tub of oysters at the post office at Falmouth and as he was whisking his tail between the open shell of one of them it closed upon him and held so firmly that he was prevented from escaping and was found in the morning with the oyster still holding fast to his tail at the rat hole enterance.