1 INTRODUCTION
2 SAMPLE AND METHODOLOGY
2.1 Target and data selection
2.2 Alignment and subtraction
2.3 Source detection and candidate identification
2.4 Candidate photometry
3 CANDIDATES
4 DISCUSSION
4.1 Expected numbers
4.2 What do optically dark SNe really look like?
4.3 Contaminants
4.4 Was an optically dark SN seen in our sample?
5 CONCLUSIONS