excel vba multiple string search with InStr function

'VBA function to check if ANY of a list of substrings is contained
'within a string:

Function AnyIn(s$, ParamArray checks()) As Boolean
    Dim e
    For Each e In checks
        If InStrB(s, e) Then AnyIn = True: Exit Function
    Next
End Function
  
'-------------------------------------------------------------------
  
MsgBox AnyIn("abcde", "o", 5, "z", "a")   '<--displays: True
MsgBox AnyIn("abcde", "o", 5, "z", "p")   '<--displays: False