To flip a coin in C# or VB.NET you just need to use this extension method on a instance of random.

Extension Method C#

public static bool FlipCoin(this Random rand)
    return rand.Next(2) == 0;

Extension Method VB.NET

<System.Runtime.CompilerServices.Extension> _
Public Shared Function FlipCoin(rand As Random) As Boolean
	Return rand.Next(2) = 0
End Function

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