Yes, I'm still getting insomnia

Recently, I resorted to over the counter remedies.

Warning found on back of Superdrug, One-A-Night, Sleep Aid tablets:

May cause drowsiness.

My initial reaction: I should bloody hope so.
After further reflection: What do you mean "may"? I paid three quid for these things!

Rest of warning:

If affected do not drive or operate machinery.

Initial reaction: If affected, I'll be going to sleep, thank you very much.
After further reflection: What do you mean "if"?

Final conclusion: [Sighs] They really don't have much faith in these things, do they?


UPDATE: Well, ok, I suppose there might be a need for the last bit of that warning: look.