Do not feel bad, we have all been there !!
Went to launch by myself...
Trailer just right at the ramp for a roller trailer..
Push on bow as holding dock line with other hand...
All good till end of rope was NOT looped through the
cleat !!
Strong current, go figure !
Had to dive in and chase boat down...
Best part, late at night going Snook fishing, No one saw my screw-up !!
That was 28 years ago...