I've read this Entire Thread - Thanks Folks! Made my awesome day moreso.
I have 'gardening' tendencies - Killing is Never an option, Imo - You folk - Do as thou Wilt - I agree with the 'do what wilt' Though I abstain from killing or causing harm - As I wilt.
The Best method, I have found, for preservation of early plantgrowth from hungry slugfests is - Ignorance.
I just Ignore them - They all vanished, soon afterwards - Have had 2 This year (From reduced-price, shop-bought Begonia (Under Pot-Drainhole squatters))
So I followed my own advice 'IGNORANCE'.
I threw them over the hedge, into my neighbours' garden - Commenced my 'IGNORANCE' Directive, And... NEVER seen Them Since.
Works For Me.
Have A Lovely Day