Developer just before pushing an untested feature into production.
May 11, 1998, When India became a nuclear power after Pokhran test
When i launch my unit tests.
When your testing team finds too many bugs in the product.
When your qa team focuses on number of testcases rather than their quality.
When QA team finds a bug right before you are about to leave.
QA team when they spot a bug in the product.